Behavioral and Brain Sciences
cambridge.org/bbs
Target Article
Cite this article: Tomasello M. (2020) The
moral psychology of obligation. Behavioral and
Brain Sciences 43, e56: 158. doi:10.1017/
S0140525X19001742
Target Article Accepted: 19 May 2019
Target Article Manuscript Online: 28 May 2019
Commentaries Accepted: 20 September 2019
Keywords:
cooperation; fairness; morality; motivation;
normativity; obligation; shared intentionality
What is Open Peer Commentary? What
follows on these pages is known as a
Treatment, in which a significant and
controversial Target Article is published
along with Commentaries (p. 12) and an
Authors Response (p. 46). See bbsonline.
org for more information.
© The Author(s), 2019. Published by
Cambridge University Press
The moral psychology of obligation
Michael Tomasello
a,b
a
Max Planck Institute for Evolutionary Anthropology, 04103 Leipzig, Germany and
b
Department of Psychology and
Neuroscience, Duke University, Durham, NC 27708-0086
Abstract
Although psychologists have paid scant attention to the sense of obligation as a distinctly
human motivation, moral philosophers have identified two of its key features: First, it has a
peremptory, demanding force, with a kind of coercive quality, and second, it is often tied
to agreement-like social interactions (e.g., promises) in which breaches prompt normative
protest, on the one side, and apologies, excuses, justifications, and guilt on the other.
Drawing on empirical research in comparative and developmental psychology, I provide
here a psychological foundation for these unique features by showing that the human sense
of obligation is intimately connected developmentally with the formation of a shared agent
we, which not only directs collaborative efforts but also self-regulates them. Thus, childrens
sense of obligation is first evident inside, but not outside, of collaborative activities structured
by joint agency with a partner, and it is later evident in attitudes toward in-group, but not out-
group, members connected by collective agency. When you and I voluntarily place our fate in
one anothers hands in interdependent collaboration scaled up to our lives together in an
interdependent cultural group this transforms the instrumental pressure that individuals
feel when pursuing individual goals into the pressure that we put on me (who needs to
preserve my cooperative identity in this we) to live up to our shared expectations: a we
> me self-regulation. The human sense of obligation may therefore be seen as a kind of
self-conscious motivation.
Humans often do things out of a sense of obligation. But obligation is not a major topic in
modern psychology, not even in moral psychology. Presumably obligation is a kind of moti-
vation, but, if so, it is a decidedly peculiar one. It has at least two distinctive features.
1. Special Force. Obligation has a peremptory, demanding force, with a kind of coercive (neg-
ative) quality: I dont want to, but I have to. Failure to live up to an obligation leads to a
sense of guilt (also demanding and coercive). Unlike the most basic human mo tivations,
which are carrots, obligation is a stick.
2. Special Social Structure. Obligation is prototypically bound up with agreements or prom-
ises between indivi duals, and so has an inherently social structure. It can even happen that
an outside party judges that an agent is obligated to do something although the agent him-
self does not think so. Breaches of obligations often prompt normative protest, from the
offended party, and apologies, excuses, and justifications from the offender.
My aim in this target article is to explain humans sense of obligation, including these two spe-
cial features, in moral psychological terms. Where did humans presumably species-unique
sense of obligation come from evolutionarily, and where does it come from ontogenetically?
What are its functions, and from what more primitive components was/is it built? My larger
goal in answering these questions is to fit obligation into a larger picture of human sociality.
1. Philosophical background
Despite its almost total neglect in psychology, obligation has been a major topic in moral phi-
losophy for centuries, albeit most often in the context of normative discussions attempting to
tell us what we are obligated to do. But there have been some influential descriptive approaches
as well (in so-called metaethics) that attempt to discern what human obligation is in the first
place. I consider in this secti on two such approaches, and then, in the sections that follow,
attempt to improve on them through modifications based on empirical results from the fields
of developmental and comparative psychology.
The first philosophers to consider obligation from a more or less psychological point of
view were the Enlightenment moral philosophers, especially David Hume (1751/1957).
Although contemporary research in moral psychology has focused mainly on what Hume
dubbed the natural virtues, such as sympathy, just as important in his overall account are
what he dubbed the artificial virtues, such as justice. The natural virtues are so-called because
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
they have a more or less direct grounding in natural (presumably
evolved) human motives or passions, especially sympathy. But the
artificial virtues such as justice (and also what we would today call
fairness) have no such direct grounding in natural motives; they
govern human behavior only through a deliberative process in
which many factors are considered and weighed.
Hume argued that the artificial virtues such as justice (and
fairness) are grounded in human convention. Societies have
formulated rules for how individuals should behave when their
various interests are potentially in conflict. In many such cases,
individuals are willing to curtail their own self-interest and coop-
erate for some overall good, but only under the condition that
others cooperate as well (what today we call contingent coopera-
tion). Humes main example is private property: Each individual
is willing to forgo any motivations to appropriate the property of
others, given that others are willing to forgo their motivations to
appropriate his. This cooperative attitude is grounded at least
indirectly in sympathy, as individuals feel that for the good of
society as a whole a kind of generalized sympathy for the social
group individuals are inclined to follow the rule. Humes other
main example is promising. Although there are many occasions
on which breaking ones promise would be advantageous to the
self or others, and cause no harm to anyone, sympathy and con-
cern for the smooth functioning of society as a whole recommend
always keeping ones promises. But in neither property nor prom-
ises is sympathy for the group sufficient. People who respect prop-
erty and keep promises (and expect others to do so) also give a
judgment of approval to the rule reflectively, from the general
point of view”–and so they do not just follow the rule but feel
obliged to do so.
Humes account does not have much to say about obligations
special motivational force. Strawson (1962) argued that approaches
in which the individual simply sits back and observes others,
either approvingly or disapprovingly, are too passive to account
for humans normative relations to one another. He pointed out
that humans have and express participant reactive attitudes toward
others, such attitudes as resentment and blame when others treat
them badly, or gratitude and forgiveness when others treat them
well. Scanlon (1998) argued that this more active way of relating
to others falls within a delimited domain of human morality hav-
ing to do with what we owe to each other. This appellation seems
appropriate in the current context because it matches our intuition
that the sense of obligation is a feeling of owing someone some-
thing (we even describe an obligation as being in someones
debt). A growing number of philosophers have focused on this
delimited domain in recent years, most prominently Darwall
(2006; 2013a) (see also Wallace 1994; 2019).
In focusing specifically on obligation, Darwall (2006; 2013a)
has pointed out the existence of what have been called bipolar
moral attitudes (see also Thompson 2004 ). If doing X would
break my promise to you, for example, then I have an obligation
not to do it, and, correspondingly, you have a right to expect me
not to do it. The obligation from me to you and the right from you
to me together define one another (see Hohfeld 1923). And it is
an empirical fact that, in human moral communities, individuals
actively assert their rights; they actively hold one another account-
able for keeping their obligations. They do this by expressing their
reactive attitudes, such as resentment and blame, to those who
have reneged in acts of so-called moral protest, to which they
expect/demand an appropriate response in return (Smith 2013).
Then, if the offender wishes to keep her good standing as a
moral being (in both her own eyes and those of others), she
must in some way recognize the legitimacy of the protest for
example, by apologizing or makin g an excuse (demonstrating
shared values despite the breach).
Darwalls account is especially useful from a psychological
point of view because he makes some specific claims about the
way that individuals enter into these kinds of bipolar relations.
For individuals in a community to hold one another morally
accountable in the human-like way, they must possess what he
calls second-personal competence, and they must recognize one
another as having such com petence in more or less equal mea-
sure. Thus, each must recognize and respect others in their
community as someone just like me’” (Darwall 2013c, p. 29).
Each individual sees herself as one mutually accountable agent
among others (Darwall 2013c, p. 7). Second-personal agents dis-
play mutual respect between mutually accountable persons
(Darwall 2006, p. 36). Accordingly, a second-personal agent can
expect another second-personal agent to hold himself account-
able, such that he will respond appropriately to blaming (e.g.,
by giving a good excuse or by apologizing). And, of course, a
second-personal agent at the same time gives other persons the
authority to call him out when he transgresses. To participate
in such a system of mutual accountability, Darwall claims that
the individual must be a rational agent with the capacity for reac-
tive attitudes (such as blame) and also basic empathy (to put one-
self in anothers shoes), as well as the capacities to make and
regulate oneself by normative judgments about what attitudes are
warranted (Darwall 2013c, p. 47; e.g., by accepting blame or feel-
ing guilty). Household pets and young human infants do not have
such competencies and, therefore, do not participate in a system
in which individuals hold one another mutually accountable.
So long as a being has the capacity to take a second-person standpoint
toward others and himself, make judgments about what demands would
be warranted from this perspective, and (self-)regulate his conduct
through making the relevant demands of himself [e.g., through feelings
of guilt], the being counts as second-personally competent. (Darwall
2013c, p. 47)
Darwall immediately then claims (following Strawson) that
second-personal competence is both necessary and sufficient
for moral obligation (Darwall 2013c, p. 47).
Darwalls account thus explains obligations special coercive
quality as deriving directly from the subjects recognition of a
legitimate protest or claim (or an imagined protest or claim)
from a social-interactive (second-personal) partner. And the con-
nection to guilt follows directly from this: Individuals internalize a
second-personal interactants blame or protest (or anticipate such
MICHAEL TOMASELLO is professor of Psychology and Neuroscience at
Duke University and emeritus director at the Max Planck Institute
for Evolutionary Anthropology in Leipzig, Germany. His research
interests focus on processes of cooperation, communication, and cul-
tural learning in human children and great apes. He has been elected
to the National Academy of Sciences of the United States, Germany,
Hungary, and Sweden. His most recent books include A Natural
History of Human Thinking (Harvard University Press, 2014), A
Natural History of Human Morality (Harvard University Press,
2016), and Becoming Human: A Theory of Ontogeny (Harvard
University Press 2019).
2 Tomasello: The moral psychology of obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
blame or protest), and, to the degree that they find it warranted,
apply it to themselves. Individuals use this internalized process to
self-regulate their social behavior. The sense of obligation to an
interactive partner is thus not simple approval of the governing
societal rule la Hume), but rather it is the force and legitimacy
of the claim that a second- personal agent makes, or could make,
on me.
With respect to the special social structuring of the sense of
obligation, Darwall recognizes societal conventions as prototypi-
cal situations of obligation, but only if second-personal agents
are involved and such conventions are not strictly necessary.
Thus, he posits both directed obligations, which concern what
one person owes to another as a result of their second-personal
statuses (e.g., even in the absence of conventions, they owe one
another respect and fair treatment), and obligations period,
which also rely on general normative principles of second-
personal agency but are not directed at particular others.
Despite the advance that such social-interactive accounts of
obligation represent as compared with the older spect ator
accounts based on disinterested judgments of approval and
disapproval they leave open many important questions from a
psychological point of view. Most important, they do not address
such basic social-psychological questions as the following:
1. Where do the reactive attitudes (such as resentment and
blame) come from, and why do human individuals (but not
other animals) care that others are blaming them or making
claims on them in the first place?
2. Where do second-personal agents come from, such that other
animals and young infants, for example, are not second-
personally competent?
3. When individuals accept a claim from another as legitimate or
warranted by, for example, apologizing, justifying, making
excuses, or feeling guilty in what does their understanding
of such legitimacy consist?
To answer these questions is to give a more secure psychological
foundation to Darwalls and similar philosophical accounts of the
human sense of obligation.
2. A shared intentionality account
My central claim here is that the human sense of obligation is part
and parcel of humans ultra-cooperative nature. Evolutionarily,
it emanated from the process by which collaborative partners
assessed one another and worried about being assessed
for their cooperativeness. This occurred in a socio-ecological
context in which exclusion from collaboration meant death.
Ontogenetically, young children first feel a sense of obligation to
collaborative partners: they act more respectfully toward collabo-
rative partners than toward others in various ways; they show
resentment and protest when their collaborative partners treat
them badly; and they formulate excuses and justifications when
they treat their collaborative partners in objectionable ways. They
are acting in these special ways toward collaborative partners
and not toward others based not on societal rules or generalized
principles of second-personal agency, but rather on the normative
bonds that interdependent collaboration creates (at the same time
and through the same processes that it creates second-personal
agents; see below). I will argue, at the end of the article, that classic
tit-for-tat reciprocity does not create normative bonds of this kind
and so cannot account for humans sense of obligation.
What is crucial for a sense of obligation psychologically, in this
view, is a sense of shared agency, a sense that we are acting
together interdependently. We have put our fates in one another s
hands and so hold one another responsible for appropriate respect
and treatment. The ability to form shared agencies derives from
a uniquely human social psychology of shared intentionality,
as described by philosophers of action such as Bratman (1992;
2014), Gilbert (1990; 2014), and Searle (1995a; 2010), and as
applied empirically by psychologists such as Tomasello (2014a;
2016; 2019). In both phylogeny and ontogeny, this unique social
psychology unfolds in two key steps. The first concerns how indi-
viduals relate to one another in the context of collaboration: joint
intentionality, which creates a joint agent we and a dyadic,
second-personal morality between collaborative partners. The sec-
ond step concerns how individuals relate to their cultural group
more generally: collective intentionality, which creates a collective
agent we and a norm-b ased,
objective morality in the cultural
group. These two steps correspond, in a general way, to Darwalls
distinction between directed oblig ation (to an individual) and
obligation period (to no individual in particular).
2.1. Joint intentionality and second-personal responsibility
In some groups of chimpanzees, individuals hunt monkeys
together in groups. But they do not call their partners out for
poor performance, or apologize or make excuses or feel guilty
for their own poor performance, or feel obligated to share the
spoils in a fair manner among participants. They are basically
using one another as social tools for their own individual ends
(Tomasello et al. 2005), and therefore do not seem to be operating
with a sense that they owe things to one another. But at some
point in human evolution, a new form of social engagement
emerged: collaborative interactions initiated by the joint agent
we, which self-regulated the individual partners I and you
(perspectivally defined). We may call this new form of collabora-
tive interaction the joint intentional schema, or dual-level collab-
oration (Tomasello 2014a; 2016; 2019). The essential point in the
current cont ext is that the joint intentional schema created the
possibility of a morality of fairness among co-equal second-
personal agents, who felt a sense of normative obligation to
treat one another in mutually respectful ways.
2.1.1. Evolutionary background
The specific chronology of how humans evolved their new forms
of collaborative interaction are not important for current pur-
poses. What is important is that at some point in human evolu-
tion the feeding ecology changed, and individuals were forced
to collaborate with others to obtain food or else perish. The skills
and motivations of good collaborators were thus naturally
selected. In this context, a key part of the process was partner
choice. Individuals were looking for the best partners, and of
course they had to be good partners themselves if they were to
be chosen (Baumard et al. 2013). Partner choice is thus funda-
mentally a process of social selection in which individuals are
both judger and judged, and the only ones who survive are
those who get good partners because those good partners evaluate
them positively. It is thus important that individuals have a kind
of cooperative identity in the eyes of collaborative partners and
themselves (we).
In addition to partner choice in which individuals attempt to
identify and choose the best partners early humans also engaged
in partner control in which individuals attempt to transform
Tomasello: The moral psychology of obligation 3
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
existing partners into better partners. In the evolutionary litera-
ture, the most common form of partner control is punishment
for non-cooperation (e.g., in meerkats so-called pay to play),
which hopefully makes individuals cooperate in better ways.
But early humans developed a unique form of partner control
that plays a key role in the way they relate to one another: They
protested against non-cooperative behavior, giving the non-
cooperator a chance to mend her ways voluntarily of her own
accord. If she did not, her cooperative identity with partners
would be damaged, and she could be hit with the ultimate
sanction of being partner-choiced out of existence.
The distinction between partner choice and partner control is
important in the current context because we might say that
whereas Hume focuses mainly on processes of partner choice,
in which individuals simply judge who does or does not have
the virtues of a good cooperative partner, Darwall focuses mainly
on processes of partner control, in which individuals demand that
their partner shape up (or else they will ship out). Partner control
within the context of human collaborative interaction which I
will characterize below as a kind of we self-regulating each part-
ner I and you”–may thus be seen as the evolutionary basis for
many of the most important participant reactive attitudes (and
how recipients respond to them). Partner choice is more of a uni-
lateral decision, whereas partner control and so the sense of
obligation is bilateral negotiation. Thus, for instance, ownership
is not just about how I relate to my iPhone, but rather about how
you and I relate to one another with respect to my iPhone. And
promising is not just about my behavior, but rather about how
you and I relate to one another with respect to my behavior.
This triadic structure you and I relating to one another about
some external object or action is the defining organization of
social activities structured by shared intentionality.
2.1.2. Ontogeny
Humans adaptations for interacting with others in these new
ways culminating in a sense of fairness and obligation to treat
others coopera tiv ely (and to expect such treatment from others)
comes into being gradually during ontogeny via a kind of matura-
tionally guided learning (Tomasello 2019). It begins to emerge
initially in young children from 1 to 3 years of age. Of crucial
importance for the current argument, this initial emergence
takes place mostly, or only, within joint intentional collaboration,
and can be seen in the species-unique ways in which human
children, in contrast to other apes, relate to their collaborative
partners. What we are looking for is the mutually respectful
behavior toward partners characteristic of second-personal agents
la Darwall), such things as persisting in commitments even
when one does not want to, dividing the spoils fairly even
when one does not want to, asking permission to break a commit-
ment, respectfully protesting a partners uncooperative behavior,
and justifying or making excuses for ones own non-cooperative
behavior.
2.1.2.1. Joint goals and commitments. In terms of motivation, the
most basic comparative fact is that, in situations of free choice
with rewards for both partners identical, 3-year-old children
mostly choose to collaborate with a partner, whereas chimpanzees
mostly choose to go it alone (Rekers et al. 2011). Children are so
motivated to collaborate that they actively attempt to reengage a
recalcitrant partner, whereas chimpanzees ignore a recalcitrant
partner and, again, attempt to go it alone (Warneken et al.
2006). Indeed, children are so motivated that they attempt to
reengage a recalcitrant partner even when they know they could
act alone and reach the same result (Warneken et al. 2012).
Humans have a species-unique motivation and preference, at
least among great apes, for pursuing goals by collaborating with
others. But more than this preference, children also relate to one
another inside these collaborative activities in unique ways sug-
gestive of a sense of obligation to treat their partner respectfully
(as an equal).
Within joint intentional activities, children go to some pains to
make sure that their partner gets her just deserts. Thus, when two
3-year-olds are working together toward a joint goal, and, seem-
ingly by accident, one child has access to a reward first, they nev-
ertheless persist with the collaboration until the partner obtains a
reward as well. They do not do this nearly as often in a control
condition in which another child lacks a reward in the same
way but they are not collaborating (Hamann et al. 2012). In con-
trast, chimpanzees in the same two situations persist with their
partner at the same (low) rate whether they are collaborating or
not (Greenberg et al. 2010). Child rens deferential behavior to
partners within the collaborative condition of this study could
conceivably be interpreted simply as an enhanced motivation/
preference to help their partner. But it could also be interpreted
as collaborative activities generating a normative sense of respon-
sibility to the partner and the partners welfare.
Consistent with this latter interpretation, children at around 3
years of age begin to appreciate the normative force of joint com-
mitments to collaborate.
1
Thus, when adults propose a joint com-
mitment to two children (Why dont you guys X together, OK?)
and the children agree explicitly ( OK), this has huge conse-
quences in how they treat their partner. For example, after an
adult has orchestrated a joint commitment between 3-year-old
peers, if one of them is tempted away by a more rewarding
bribe that benefits only her, they quite often resist this bribe;
that is, they resist this bribe more often than if they are simply
playing side-by-side without the joint commitment (Kachel &
Tomasello 2019). In another experimental paradigm, when
3-year-old children form a joint commitment with a partner,
again as opposed to merely playing beside her, they more often
do such things as wait for the partner when she is delayed, repair
some damage done by the partner, refrain from tattling on the
partner, and perform the partners role for her when she is unable
(Gräfenhain et al. 2013). Although again possible, it is more dif-
ficult to interpret all of these behaviors as resulting simply from
an enha nced prosocial motivation toward the other child; why
should simply agreeing to do something together have these var-
ious effects if not because it creates some sense of responsibility to
ones partner?
In further support of the view that children understand joint
commitments to have normative force (and not just to enhance
motivation), when a childs partner fails to play his role in a
joint commitment in the way they both know he should, the
child protests (but not if the partner fails out of ignorance;
Kachel et al. 2018). It seems implausible that children are protest-
ing that the other child has not enhanced his prosocial motiva-
tion. Much more likely is that they are protesting the breaking
of a joint commitment. And, crucially, the childs protest in
such situations is not articulated as a personal preference or desire
(e.g., I do not like it when you X), but rather as a normative
requirement of anyone who would play that role, with the child
saying such normative things as: One must pull on the rope,
Thats not how it is done, and so on. Thus, beyond the likes
and dislikes of the individuals involved, there are for the children
4 Tomasello: The moral psychology of obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
normative standards of how collaborative partners play their roles,
which apply to anyone in the appropriate role. Connecting back
to the previously cited studies, if young children se e their collab-
orative partners as normatively committed to them in this way in
such situations, then it is likely that their resisting bribes to defect
on their partner, and similar behaviors, are underlain by a similar
sense of being normatively committed to their partner as well (see
also Siposova et al. 2018).
Finally, perhaps the strongest evidence that young children
understand joint commitments as normatively binding comes
from their understanding of how to break one. Thus, when an
adult proposes a joint commitment to a 3-year-old to play a
game together (which the ch ild explicitly accepts), and the child
is lured away to a more fun game, most of them acknowledge
in some way their breaking of the commitment (in a way that
2-year-olds do not). They take leave, sometimes by explicitly
asking permission (e.g., Ill go over there now, OK?), sometimes
by apologizing (e.g., Sorry, but Im going over there now), some-
times by simply announcing their departure (e.g., Im goin g over
there now), and sometimes nonverbally by hesitating and look-
ing anxiously to the partner before leaving. They do not do any
of these things if they are just playing with the adult spontane-
ously, in the absence of a joint commitment, and then are lured
away (Gräfenhain et al. 2009). And in another experimental par-
adigm, when the childs partner to a joint commitment breaks it
by leaving, it matters how he takes leave. If he asks permission or
gives notice, the child allows him to leave without protest and
waits longer for him to return, as compared to the situation in
which he leaves peremptorily without asking permission or giving
notice (Kachel et al. 2019). These studies thus support the conclu-
sion that 3-year-old children understand the normative force of
joint commitments with respect to both their own and their part-
ners actions, based on behaviors such as leave-taking and norma-
tive protest that do not emanate simply from an enha nced
preference.
The natural conclusion from all of these studies is that young
children feel some kind of normative connection to their collab-
orative partner that they do not feel toward others outside of col-
laboration. It is thus collaboration among individuals, not societal
convention, that is the first and most natural home of the sense of
obligation (or responsibility; see below) directed to ones partner.
2.1.2.2. Sharing the spoils fairly . If an ape has food resources in
its possession, it very seldom gives up any of them to anyone else
and certainly not for no reason. Young children are a bit more
generous, but not much; on average, in dictator games where they
are free to share what they will, 3-year-olds across cultures offer
peers about one in four items in their possession (Ibbotson 2014).
But when the resources to be divided are the fruits of a collab-
orative effort, we see a very different pattern. When chimpanzees
pull in a board together with food clumped in the middle, typi-
cally the domina nt individual simply takes it all, and collaboration
breaks down over trials (Melis et al. 2006). In contrast, human
3-year-olds in the same situation divide the spoils more or less
equally on more or less every trial, and they can continue to col-
laborate in this manner indefinitely (Warneken et al. 2011). Most
dramatically, when 3-year-old peers collaborate to pull in
resources and, by luck, one of them ends up with more than
the other, the unlucky child often verbally notes the inequity
(e.g., I only have one), and the lucky child often (about three-
quarters of the time) hands over the extras so as to equalize the
rewards among partners (Hamann et al. 2011). They almost
never do this in a control condition with no collaboration, sug-
gesting that the sense of shared agency in producing the rewards
is crucial. In contrast, chimpanzees, in a study designed to be as
similar as possible to this one, shared rewards (i.e., allowed the
partner to take them) equally often inside and outside the context
of a collaboration, presumably because they have no sense of
shared agency in producing the spoils. In a related set of studies,
children who received all of the rewards from pulling in a board
with sweets on it shared those sweets more often with a collabo-
rative partner than with a peer who was simply nearby (i.e., was a
free ride r to the spoils; Melis et al. 2015). Chimpanzees in the
same experimental situation shared equally infrequently with
partners and free riders alike (Melis et al. 2011).
Thus, in the context of joint intentional collaboration but not
in non-collaborative contexts, children, but not chimpanzees, are
motivated to share equally with, and only with, their partner. This
is not just enhanced generosity to ones collaborative partner: In
the Hamann et al. (2011) study, children did not give the collab-
orative partner more than half but only the amount needed to
equalize the rewards. Indeed, when motives for generosity and
equality are explicitly pitted against one another in this experi-
mental paradigm, children who have been in a collaboration do
not accept distributions that are generous either to their partner
or themselves, but accept distributions readily only when the
rewards are distributed equally (Corbit et al. 2017) and they
do not behave in this way outside of collaboration. Joint inten-
tional collaboration does not just generate an enhanced generosity
toward ones partner, but rather an enhanced normative sense
that we should share fairly (i.e., equally).
Of crucial importance to this normative interpretation is the
phenomenon of social comparison in distributive situations.
The main point is that the sense of distributive fairness toward
a collaborative partner implies a social comparison of the spoils
obtained by self and partner and, critically, a judgment that we
both deserve the same. This suggests that the sense of fairness is
less about the absolute amount of resources distributed than
about how one treats ones partner relative to the self
(Engelmann & Tomasello 2019). Thus, when children receive,
for example, one piece of candy, they are content, but when a col-
laborative partner at the same time receives five pieces of candy,
they are not content and often register normative protest (e.g.,
Its not fair. See Rakoczy et al. 2016). Importantly, children
feel this aversion to inequity also in the opposite direction: they
are happy to receive five candies on their own, but they are
unhappy if their partner at the same time receives only one,
and indeed in this case they often share with the partner in
order to equalize (in the vernacular, they show an aversion even
to advantageous inequity). In contrast, in virtually identical situ-
ations, chimpanzees react to the absolute amount they receive
irrespective of how much the partner receives; they do not engage
in social comparison at all (see Ulber & Tomasello 2017 for a
comparative study of children and chimpanzees).
2
Further supporting this view of distributive fairness as an issue
of equal respect for ones partner is the phenomenon of proce-
dural fairness (Shaw & Olson 2014). In a small group of children,
5-year-olds do not like to receive a smaller share of the spoils than
their partners. But if the children agree ahead of time on a fair
procedure for di stributing resources (rolling a die, drawing straws,
etc.), then they are all content with the outcome even if they end
up with less than the others (Grocke et al. 2015). The point is not
to get the same amount but to be treated fairly, as an equal.
Children are also content to receive less than others if they have
Tomasello: The moral psychology of obligation 5
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
been given a voice in making the distributive decision (Grocke
et al. 2018), again suggesting that the main issue is being treated
fairly and with respect. And in a mini-ultimatum game, 5-year-
old children will even sacrifice resources to punish a partner who
does not share with them equally (Wittig et al. 2013) presum-
ably out of resentment for being treated as less than equal (i.e.,
unfairly) which chimpanzees do not do (Jensen et al. 2007).
The natural conclusion from these sharing studies is that
young children feel a kind of normative force to share fairly
with collaborative partners that they do not feel toward non-
partners (whereas chimpanzees do not discriminate). They feel
they should treat their partner, and be treated by their partner,
as equally deserving, which is also the case in situations of proce-
dural fairness even if the resources end up unequal. Again, then, it
is joint intentiona l collaboration that is the first and most natural
home of a sense of obligation (or responsibility; see below)
directed to ones partner: in this case, to be respectful and fair
to ones partner in dividing collaboratively produced resources.
2.1.3. An interim explanation
It is unlikely that the explanation for these experimental results is
that collaboration induces an enhanced sympathy for the partner.
Enhanced sympathy could potentially explain why children per-
sist in collaboration in the face of outside temptations only after
they have made a joint commitment but not otherwise, and
why they share more with their partner when they are dividing
the spoi ls of collaboration than otherwise. But enhanced sympa-
thy alone could not, under any plausible scenario, generate child-
rens tendency to share equally with their partner only inside, and
not outside, of collaborative activities, much less their satisfaction
with procedural fairness. It could also not explain childrens nor-
mative protest against unfair treatment either when the partner
defects from the collaboration or shares the spoils unfairly using
normative language such as must, should, and ought, nor could it
explain childrens various leave-taking behaviors (including apol-
ogies and excuses) when they are breaking a commitment. The
most plausible explanation is that children are feeling some sort
of obligation or responsibility to treat their partner respectfully
and fairly.
I will give an overall explanation for the developmental emer-
gence of childrens sense of obligation only after having examined
older childrens sense of collective agency and objective moral-
ity. For now, I simply wish to highlight the indispensable role of
the joint agent we, which not only conducts but also self-
regulates the collaboration. Even 18-month-old toddlers seem to
have formed a joint agent we with their partner, as evidenced
by the fact that they attempt to reengage recalcitrant partners
even when they do not need them for goal success, using cooper-
ative means such as beckoning and encouragement (which apes
do not do; Warneken et al. 2006; 2012). These communicative
behaviors may be seen as attempts by the child to reconstitute
our lost we. And by the time they are 3 years of age, children
are able to actually constitute a normatively structured joint
agent we by forming with a partner a joint commitment to
jointly self-regulate the collaborative process, in the sense that it
gives each party to the agreement the standing to protest or
rebuke non-cooperative behavior. Darwall (2006) characterizes
the basis for such protest as the parties to the agreement giving
one another the representative authority of the cooperating
body (we) to call the other out for non-cooperative behavior.
And when children protest a partners non-cooperative behavior,
the offending partner typically recognizes and accedes to this
protest because she views it as legitimate or warranted, based
on their statu s as equally deserving second-personal agents who
have thrown in together to form a self-regulating we.
Taking the protest of collaborative partners seriously, as a
legitimate grievance from we, amounts to self-regulative pres-
sure from we. The fact that 3-year-old children do in fact feel
this way when they offend their partner , at least sometimes, is
apparent in their feelings of guilt when they let their partner
down. In experimental studies, after children have semi-
inadvertently ruined their play partners creation, they go to
much trouble to make reparations (Vaish et al. 2016). Guilt
thus represents a kind of after-the-fact collaborative self-
regulation, as it also constitutes pressure from we (our
common-ground standards for role performance) on both I
and you: what Tomasello (2016) has called a we > me moral
attitude. More generally, what is being self-regulated either during
or after the collaboration is my cooperative identity: how we
evaluate me as a partner.
Key in all of this is the notion of role that joint intentional col-
laboration creates. In collaborative activities performed by a we,
partners each have their role to play. As both play their roles, they
come to see one another as equally deserving individuals, equally
worthy of respect. This recognition is based on a dawning under-
standing of self-other equivalence (Nagel 1970b): I and my part-
ner are equivalent in all important respects in this collaborative
context. Most basically, as children participate in joint intentional
collaboration, they see that: (1) both participants are equal causal
forces in producing the mutually intended outcome; (2) both
partners could switch roles as needed; and, most crucially, (3)
the standards of performance for each role (so-called role ideals,
the first social shared normative standards) are impartial in the
sense that they apply to anyone in that role. By the time they
are 3 years of age, children thus come to understand a kind of
self-other equivalence in the context of joint intentional collabo-
ration to the extent that they now view their partner as a mutually
deserving second-personal agent to whom they owe respect and
fairness.
3
And so, the interim hypothesis is that parti cipation in joint
intentional collaboration, especially as initiated by a joint commit-
ment, is the earliest source of childrens (and early humans) feel-
ing of obligation to their partner. Critical to the process is the
childs judgment that she deserves to be criticized if she does
not live up to the joint commitment. This judgment of legitimacy
is based on (1) an understanding of the partner as an equally
deserving second-personal agent who deserves to be treated coop-
eratively (based on a sense of self-other equivalence); and (2) an
understanding of a kind of we > me self-regulation of the collab-
orative activity in which the we is the joint agency to which the
child has jointly committed and which she must, to maintain her
cooperative identity in the partnership, respect. Nevertheless,
because this early normative sense is delimited directed to
and only to a collaborative partner let us call it a sense of
second-personal responsibility directed to the partner (as alluded
to above). To get to Darwalls sense of obligation period not
directed to any particular individual we will need to get to a full-
fledged objective morality, and for that we need a more expan-
sive form of cooperative social engagement.
2.2. Collective intentionality and objective obligation
Second-personal responsibility to a collaborative partner is a real,
but nevertheless circumscribed, form of normative obligation. To
6 Tomasello: The moral psychology of obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
get to a more universal form, we need a larger social context with
universalizing elements. Specifically, we need a human culture
with which individuals identify: we Erewhonians (or whatever).
Ontogenetically, it is only children after 3 years of age who iden-
tify with their culture in this manner and so not only favor
in-group members over others, but also subordinate their own
preferences to the cultural groups collective expectations for indi-
vidual behavior, also known as social norms, some of which evoke
a sense of obligation to objective moral standards (violation of
which can result in one losing ones moral identity within the
group).
The most fundamental assumption guiding this second step of
our account is that a cultural group that is, evolutionarily, a
hunter-gatherer group with clear demographic boundaries as
characteristic of humans for most of their history is nothing
more or less than one big collaborative activity in which we
as a people operate with a collective commitment to the groups
surviving and thriving. Each individual has her role(s) to play
in this collective commitment both as a member of the group
in general and, possibly, as a person playing some more specific
division-of-labor role and this generates, in a scaled-up manner,
more universal normative expectations. Extending the proposal
that commitment and fairness accompanied by a sense of obliga-
tion first apply to, and only to, collaborative partners, the pro-
posal now is that the sense of oblig ation at this second step
applies to, and only to, ones cultural compatriots. One may
have sympathy for suffering out-group members, but it is not
clear that one has obligations to be fair to them (unless one has
an expanded sense of all of humanity as in ones in-group
moral community).
2.2.1. Evolutionary background
The emergence of modern humans, some 150,000 years ago, is
marked by growth in the size of social groups, leading eventually
to tribal organization involving multiple semi-independent
bands, united into a larger tribe and to competition with
other tribal groups. What this meant was that ones group now
contained a new category of individuals in-group strangers
who had to be distinguished from out-group competitors. For
individuals, this meant that it was important to identify who
was and was not in the tribal group, and it was important that
they themselves be identified by others as a member of the tribal
group (read: culture) as well. To be identified as a group member,
what was most important was conformity, since the most reliable
way to identify members of the cultural group was by common-
alities of behavior speech and other conventional cultural prac-
tices and, at some point, by appearance in terms of dress,
cultural markers, and so on. Nonconformists were suspect and
at risk of being excluded from the group a scaled-up process
of partner choice.
But there were also issue s of partner control. One needed to be
able to coordinate with all and only in-group members, even if
one did not know them personally. For example, anyone who
grew up in this group must know how to net-fish or worship
with others in the conventional way. There was thus pressure to
conform to the groups conventional cultural practices as the
way we Erewhonians do things (where doing otherwise risks dis-
rupting things for ones compatriots). And so arose social norms:
Because we all value the groups smooth functioning, we all must
do things in the ways that we all expect us to do them. In addition,
to be a good group member, we must also make sure that others
follow these norms as well (especially by normatively protesting
violations). The enforcement of social norms is thus a kind of
scaled-up, third-party version of the second-personal protest
characteristic of joint intentional collaboration: It is a new, group-
level form of partner control comprising group-level protest
backed by a threat of exclusion (partner choice). When individu-
als deviate, other group members call them out for nonconfor-
mity, with the enforcer acting as a kind of representative of the
larger cultural we. Third-party enforcement on nonconformists,
with the implicit backing of the group, makes everything much
less personal: Anyone who did what you did would be called
out for it. It thus represents a first step toward the objectification
of norms.
Cultural practices and social norms in large part identify our
group as who we are: We are those people who talk, think,
dress, and eat in these particular ways. Being a member of the
group means identifying with these ways (begun by our revered
ancestors), such that the group com prises not a finite number
of individuals but a universalizing description of identity: anyone
who would be one of us. Even though the groups social norms
existed before I was born, I feel myself to be, in an important
sense, a co-author: We Erewhonians created these norms for
the good of the group and everyone who would be one of us
agrees. This creates the most basic and sometimes pernicious
distinction in humans group-minded existence: the distinction
between those of us who, by following and enforcing the practices
and beliefs of our culture, are rational/moral beings, and those
from alien groups (barbar ians) who are not rational/moral beings
at all. This universalization of identity legitimates our ways of
thinking and acting as objectively rational and moral (especially
since those who would not be one of us seem to be incapable
of behaving rationall y and morally). We are therefore justified
or warranted in coming down on me if I transgress, since all
group members, including me, should be subject to these norm s
because they are the legitimate, indeed objectively true and
valid, ways that rational/moral beings act.
In this context, a kind of new reality emerges: institutional
reality (Searle 1995a). Some cultural practices become institution-
alized, as the common-ground assumptions and interdependen-
cies involved are made explicit and public. Thus, mating
behavior becomes marriage, leaders become chiefs, and items
used to establish equivalences in trade become money. This pro-
cess brings into existence new types of agents with new types of
deontic relationships to others (both rights and responsibilities)
that are conferred upon them, as it were, by a declaration of the
group. Chiefs have conferred upon them a new status that entitles
them to perform marriages and declare war, but at the same time
obliges them to consult with the elders before acting. Membership
in the cultural group itself becomes a status: Those who identify
with the group by affirming and conforming to its ways are
recognized as group members, often after passing some rites of
passage around the time of adolescence. This cultural identity
is something valuable to individuals, who seek to maintain it
(e.g., via acts of impression management).
In this cultural-institutional context, then, individuals con-
tinue to self-regulate in a we > me manner, but now the we is
our culture that is, those who would be one of us and each
of us must conform to the groups objective normative stan-
dards specifying the right and wrong ways to think and act. In
this cultural-institutional context, individuals with a moral iden-
tity in the group feel an obligation to either conform to the
groups ways or else to justify themselves to others by explaining
their deviance as resulting from values that we all still share (e.g., I
Tomasello: The moral psychology of obligation 7
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
neglected my cultural duties because I had to go save my drown-
ing child, which we all agree was the right thing to do).
Individuals thus feel that to maintain their cultural identity in
the group, they are obliged to do (or justify not doing) the objec-
tively right things, which are experienced (in Darwalls terms) as
obligations period.
2.2.2. Ontogeny
Humans are thus adapted not just for cooperation with individu-
als, but also for life in a cultural group. These adaptations for
group life begin to emerge ontogenetically at around the third
birthday, as children begin to display an emerging group-
mindedness and sense of objectivity in many domains of life
(Tomasello 2018; 2019). Of special importance in the current
context, it is at this age that childrens cooperative interactions
with others begin to take a normative turn: they begin to discern
how we in this group should act, that is, how a collective com-
mitment to the group created through identification with the
group and its social norms obligates us to act. As development
proceeds through the preschool years, childrens emerging group-
mindedness enables them to engage in various new forms of
maturationally guided learning, in which the group and its nor-
mative concerns play an ever-increasing role.
2.2.2.1. Group-mindedness. Human children socially interact with
others from early in infancy, sometimes even in the midst of mul-
tiple other people. But from 3 to 5 years of age, children begin to
understand social groups as such. Astoundingly, during this age
range childrens social behavior is even affected in significant
ways by simply being assigned to a minimal group established
only verbally and with arbitrary supports for example, as they
don a green T-shirt and are told that they belong to the green
group (along with other similarly clad children; Dunham 2018).
The result is that childrens sense of being in a group is not
based simply on physical proximity and/or familiarity (as it is,
arguably, in other primates), but rather on the idea of a social
group based on similarity alone.
Thus, 4- to 5-year-old children who have been assigned to a
minimal group show loyalty by preferring to stick with the
group even when it means losing rather than winning a game
(Misch et al. 2014). Preschool children preferentially help
in-group over out-group members (Over 2018). When a member
of a 5-year-olds minimally established in-group does something
mean to a victim, she feels an in-group responsibility to make
amends to that victim whereas she does not feel a responsibility
if the perpetrator was an out-group member (Over et al. 2016).
When children in this age range are given a chance to share
with children in their in-group, they do so relatively generously,
whereas they do not do so with children from an out-g roup
(Fehr et al. 2008). In general, preschool children begin to show
an understanding of the group as a kind of collective agency, as
they judge that being a member of a task group means both
that the individual wants to be a member and that the group
wants her to be a member as well (Noyes & Dunham 2017).
And, critically, even childrens basic sense of social identity is
group-minded, as (1) they care more about their individual repu-
tations with in-group than with out-group members (Engelmann
et al. 2013); and (2) they engage in active attempts to manage
other peoples evaluative judgments not just of themselves but
of their in-group as such (Engelmann et al. 2018
).
These findings and others like them (for reviews, see Dunham
2018; Dunham et al. 2008) establish that children after 3 years of
age are tuning in to the group-level organization within which
they live, and, arguably, this underlies their newfound under-
standing of and relating to things in an objective and/or norma-
tive manner: This is how things are (for us) and this is how
things are done (by us). Note that, in this view, in-group favor-
itism (and out-group disfavoritism) is basically a scaled-up ver-
sion of childrens tendency to favor collaborative partners over
non-collaborators (i.e., free riders).
2.2.2.2. Social norms. A basic requirement of membership in a
cultural group is conformity, including to its social norms.
From early in development young children imitate the actions
of others, but by 3 years of age they are actually conforming to
the group by overriding their own individual preferences to do
what others are doing (which other apes do not do; Haun &
Over 2014; Haun & Tomasello 2011). This conformity often
takes on a kind of objectifying or normative quality. For example,
3-year-old children engage in so-called overimitation, in which
they copy aspects of adult behavior that are clearly not related
to goal attainment (Lyons et al. 2007). One inte rpretation of
this behavior is that when children see an adult performing an
instrumental action with extra unnecessary flourishes, they do
not interpret this as an individual idiosyncrasy of the actor, but
rather as a manifestation of how it is done in the culture
(Keupp et al. 2013).
An especially important indicator of preschoolers emerging
understanding of the group-mindedness of social norms is their
proclivity not just to conform to them but to enforce them on
others. From around 3 years of age, when children detect a social
norm or rule violation, they protest, often normatively (Rakoczy
et al. 2008; Schmidt et al. 2011; 2016a; for a review, see
Schmidt & Tomasello 2012). They presumably are motivated by
something like a concern for how things are going in the group
in general, as indicated by their use of normative language. This
normative language takes one of two forms: (1) an expression
that this is how one should do it; or (2) an even more objecti-
fying expression that this is how it is done (Koymen et al. 2015).
This language makes it clear that children are not just expressing
their personal preference or desire, but rather they are referencing
the groups normative standards that apply to all group members
alike. Interestingly, when adults teach children about the world (in
natural pedagogy; Csibra & Gergely 2009), this same generic, uni-
versalizing mode operates (e.g., To open these kinds of things,
you must twist them like this ), and so children take the pedagogy
to apply not just to the items indicated but generically to all
kind-relevant agents and actions (Butler & Markman 2014;
Butler & Tomasello 2016 ). The protesting child is, as it were, rep-
resenting the group and its interests.
Importantly, recent research has found that preschool children
also understand the group-relativity of some types of social
norms. That is, specifically, when a perpetrator breaks a conven-
tional norm, children enforce the norm if and only if the actor is
an in-group member, since in-group members are within the pur-
view of the norm and should know better (whereas out-group
members are not; Schmidt et al. 2012). But when a perpetrator
breaks a moral norm specifically, by harming an in-group mem-
ber these same children enforce the norm on both in- and out-
group individuals alike. Presumably, this differentiation of norm
types (see also Turiel 2007) reflects childrens understanding
that breaking moral norms represents a threat to the well-being
of the group, whereas conventional norms are just how those
who identify with the group behave to coordinate and self-
8 Tomasello: The moral psychology of obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
identify. Interestingly, when children explain to an in-group peer
the reasons for a third-partys norm violation, they explain a con-
ventional violation by attempting to justify the rule, but they
explain a moral violation by simply stating the offense, assuming
that it is clear that it violates a value that we all already share as
members of the group (Mamman et al. 2018).
Finally, by around 5 years of age, children in small groups can
create novel social norms for themselves by agreement (i.e., in the
context of a novel game; Göckeritz et al. 2014; Hardecker et al.
2017). Having created a norm, when new children come to play
with the same materials, the creators enforce these self-invented
rules on the new children normatively (e.g., You have to play
it this way). And when someone agrees to a norm but then
breaks it, children protest normatively, whereas when someone
who has not agreed to the norm does exactly the same thing
they do not protest (Schmidt et al. 2016b). The ways that young
children understand and deal with the norms that they have cre-
ated themselves simply on the basis of agreement with peers
with no authority figure involved suggests an emerging under-
standing that the agreements that constitute social norms produce
individual rights and obligations. Such collective agreements or
commitments may be seen as scaled-up versions of the joint com-
mitments characteristic of joint intentional collaboration at the
first step of our account.
2.2.2.3. Obligation. Together, these various lines of research sug-
gest that young childrens developing sense of belonging to a cul-
tural group and their developing sense of morality, including a
sense of obligation, are all of a piece. Children are loyal to the
in-group, they feel guilty and make amends for the acts of the
in-group, they share fairly with the in-group, they conform to
the in-group, they enforce conventional norms especially on the
in-group, and they care more about their reputation with the
in-group (and the in-groups reputation itself) as opposed to
their general lack of interest in any out-group. In-group members
thus constitute the childs sociomoral world, and others are sim-
ply outside that world. And so children make objective norma-
tive judgments about how things should be done, with the
reference group being the members of the sociomoral world
that they inhabit. They are objective about their known worlds.
Later, school-age children come to understand that there may
be other sociomoral worlds with their own norms (Schmidt
et al. 2017).
With regard to the understanding of obligations specifically,
preschool children appear to believe that members of social
groups have obligations to one another that they do not have to
out-group members. For example, Rhodes (2012) introduced 3-
to 4-year-old children to two novel groups of characters ( flurps
and zazes). She then asked them to predict each groups behavior
both toward in-group and out-group members. The children
expected the in-group members not to harm one another
(whereas it was less bad for them to harm out-group members),
the authors interpretation being that children judge in-group
members as having an obligation not to harm one another,
which they do not have to outsiders. As a kind of control obser-
vation, children did not have different expectations for within and
between group behaviors with regard to helping. So it is not just
that they think individuals are nicer to in-group members, but
that it is specifically about their being obliged to treat in-group
members in special ways. Related studies have found similar
results when children are asked to explain (rather than predict)
the behavior of individual flurps and zazes toward in-group and
out-group members (e.g., Chalik & Rhodes 2015; Rhodes 2014;
Rhodes & Chalik 2013). In a review, Rhodes and Wellman
(2017, p. 195) state:
On this account, it is only those behaviors that children construe as oblig-
atory that are shaped by their representations of social groups. Thus, chil-
dren view people as obligated not to harm members of their own group,
and because this is about an obligation, they do not extend this notion
across group boundaries. In contrast, they fail to at least at early ages
view pro-social actions as falling under the same scope of obligation,
and thus, do not make group-based predictions about these types of
behavior.
The hypothesis is thus that preschool children are beginning to do
the same thing at this second step in our account, with regard to
groups, that they were doing at the first step, with regard to col-
laborative partners. Namely, they are judging that obligations
apply to those with whom they can and do form a we, either
within a collaborative partnership or within a cultural group.
The fact that these same children do not expect in-group mem-
bers to help one another more than out-group members provides
a kind of control observation that it is not just more positive feel-
ings toward in-group members; it is about obligation specifically
or especially. As development proceeds, childrens understanding
of objective standards that should apply universally to all ratio-
nal/moral beings persists; it is just that, for some individuals at
least, their understanding of who is included in the class of ratio-
nal/moral beings widens and relativizes.
2.2.2.4. Cross-cultural variation. Recent research has begun to
explore cross-cultural differences in the development of childrens
cooperation and morality. The overall pattern with respect to pro-
social sharing, for example, is that children are quite similar at
younger ages, and then during middle childhood (roughly, early
school-age), their behavior begins to diverge based on the differ-
ent social norms of the different cultural groups to whic h they
belong (House et al. 2012; 2013; House & Tomasello 2018). As
another example, Schaefer et al. (2015) found that 4- to
11-year-old children from three different cultural groups (one
WEIRD Wes tern, educated, industrialized, rich, and democratic
and two small-scale African cultures) took into account work-
based merit (i.e., based on who produces the most resources) in
culturally specific ways (some giving it more weight than others)
when deciding how to divvy up collaboratively acquired resources.
And Kanngeisser et al. (2019) found that while children from sev-
eral very different cultural contexts all respected the property of
others, there was at the same time cultural variation in how
much they did so.
These cross-cultural differences are consistent with the current
ontogenetic account because they concern children only at our
second, group-minded step as they gradually tune into and
learn the particular social norms of their particular culture (lead-
ing to such things as guilt cultures vs. shame cultures). If stud-
ies were conducted that found cultural differences in childrens
moral actions and judgments prior to 3 years of age, those
would call into question the current ontogenetic story. However,
there is very little cross-cultural data on children this young, as
in many small-scale cultures, toddlers are notoriously shy with
adults of all kinds. In any case, the current ontogenetic account
cannot be considered to be a universally valid account of the
human species so long as the only children for whom we have
rich data across ontogeny are from WEIRD cultures.
Tomasello: The moral psychology of obligation 9
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
2.2.3. A second interim explanation
In the case of joint intentionality and second-personal responsi-
bility, our developmental explanation was about the most basic
foundations of human morality: namely, how, through joint
intentional collaboration, young children: (1) construct a sense
of self-other equivalence, leading to the judgment that their part-
ner is an equally deserving individual worthy of equal respect; and
(2) self-regulate the collaboration with their partner collabora-
tively (as a joint agent), leading to a kind of we > me valuation,
creating for both partners the possibility of second-personal pro-
test that both see as legitimate since they both affirmed it initially
as part of their we-constituting joint commitment. The internal-
ization of this dynamic constitutes the individua ls feeling of
second-personal responsibility to their collaborative partner
(and not to non-collaborating outsiders). Then, in the second
step of our account, 3- to 5-year-old children develop another
way of relating to others cooperatively namely, they begin to
have a sense of themselves as members of the cultural group
with which they identify. That is, they have developed a second
sense of we, applying not just to their partner of the moment,
but also to their cultural group. Tomasello (2019) argues that
there is very likely a strong evolutionary/maturational component
to the emergence of this new group-minded form of social cogni-
tion at around 3 years of age.
In joint intentional activities, young children learn role ideals
and standards which they strive to live up to. In a cultural
group, although there are many specific cultural roles, the basic
role is as a group member, which implies ideals and standards
that individuals must live up to in order to have the status of
members of the group in good standing. And just as in joint
intentional collaboration there is collaborative self-regulation, in
cultural groups there is a kind of group-level self-regulation via
social norms. The crucial question is why the child buys into
these social norms, which she had no part in creating, as legiti-
mate. One possibility noted above is that the child identifies
with her cultural group; she values being seen by others, and see-
ing herself, as an Erewhonian (or whatever), constituted by those
of us, going back to our ancestors, who have certain distinctive
ways of doing things. The child, in a sense, comes to consider her-
self a kind of co-author of the social norms (analogous to her
co-authorship of a joint commitment): We Erewhonians created
these social norms.
This moral identity view fits very well with the analysis of
Korsgaard (1996), who proposes that an obligation always
takes the form of a reaction against the threat of a loss of identity
(p. 102). Indeed, one can imagine that this threat to self contrib-
utes to the sense of objectivity that goes along with a mature
sense of obligation: I am obliged to conform and to identify
with those around me or else I really and truly, objectively, will
cease to be who I am in the group. The social reference point
for universal obligations is thus not actual human beings, however
numerous, but the universalization of anyone who would be one
of us. Although this takes place within the cultural group, the
psychology is still a universalizing psychology because in the
ancestral state early humans thought of themselves and their com-
patriots as the only true persons, with outsiders being barbarians.
This means that the mature sense of obligation is tied to shared
agency even in this case. Thus, we may ask about our obligation
to (as opposed to our sympathy for) individuals from outside
our moral community. Do we have obligations to invading
Martians? We may feel sympathy for them in some situations,
but do we feel a sense of obligation to them? If we fail to cooperate
with them, do we owe them an apology or excuse? And what
about other animals? Some peo ple include them in the moral
community and feel that we have obligations to them, but if we
fail to cooperate with an animal, do we owe it an apology or
excuse? The point is that the sense of obligation (in contrast to
the sense of sympathy) only operates within ones moral commu-
nity, which is best thought of, in evolutionary perspect ive, as a
kind of collective agency (which different cultural groups may
construct for themselves somewhat differently).
Throughout this whole process, the role ideals and standards
that individuals strive to meet must be viewed as legitimate, as
warranted, or else meeting these ideals and standards is simply
strategic. And so, when children follow the ways of the cultural
group, they are not just conforming strategically; and indeed,
they do not conform to the behavior of peers when that behavior
does not accord with their own understanding of who they are as
moral beings in the culture. For example, when a 5-year-old child
observes three other children being callous to a needy peer, many
of them do not follow along but behave prosocially in a way that
confirms their own moral identity (Engelmann et al. 2016).
Further, when children do not meet the groups normative ideals
or standards, they do not always try to cover up (though they may
on occasion), but rather they feel guilty and attempt to make rep-
arations (Vaish et al. 2016). Guilt, as opposed to embarrassment
or shame or regret, derives precisely from the fact that one
knows one deserves the censure from the point of view of we
in the group. The internalization of this social-interactive process
is what creates the human sense of obligation with a kind of uni-
versal, objective application which derives its special force
from its self-affirmed legitimacy rooted in ones sociomoral
identity.
3. Obligation as collaborative self-regulation
Some evolutionary theorists (e.g., de Waal 2006) have proposed
that tit-for-tat reciprocity between individuals you scratch my
back and Ill scratch yours is the ultimate source of the
human sense of fairness or justice (and so, presumably, obliga-
tion). But while cooperative acts may engender a sense of grati-
tude, and so motivate a return cooperative act, it is difficult to
see how this process could engender a sense of obligation unless,
of course, the initial cooperator feels that his cooperative act gives
him a claim on the recipient, and the recipient feels the force of
this claim in the sense of its moral legitimacy. In the current
view, a sense of legitimacy can only arise if the two of them feel
that they are interdependent parts of some larger social partner-
ship or group (we
) that is regulating the interaction.
Interestingly, when young children practice reciprocity in the
sharing of resources (e.g., Warneken & Tomasello 2013), they typ-
ically do not apologize, justify, or make excuses if they do not
reciprocate they do not self-regulate the interaction morally
suggesting that they are motivated by something more like
gratitude than obligation specifically. Thus, although tit-for-tat
reciprocity can, if the partners think of themselves as an interde-
pendent we, play a role in generating obligations, it is neither
necessary nor fundamental.
4
The social exchange theory of Cosmides and Tooby (2004)
locates the origin of humans sense of obligation in the evolution-
ary psychology of humans trading of goods with one another.
Their theory goes beyond simple tit-for-tat reciprocity in positing
an agreement-like structure that underlies obligations between
partners (the obligation schema). But the theory does not
10 Tomasello: The moral psychology of obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
explore in any depth the origin of a sense of obligation, in that it
does not seek to identify the psychological components out of
which it is built either phylogenetically or ontogenetically. Why
does social exchange generate obligations in the first place? Our
interpretation, again, similar to that for simple reciprocity, is
that social exchange creates obligations precisely to the extent
that the parties to the exchange see it as a cooperative agreement
that we have created and that we cooperatively self-regulate
(e.g., by protest, justification, and apology).
In contrast, in our shared intentionality hypothesis we have
focused on where the sense of obligation comes from phylogenet-
ically and ontogenetically, namely, from the form ation of shared
agencies in collaboration and culture. In support of the hypothesis
we have presented evidence that children approaching their third
birthdays treat collaborative partners, as opposed to others, espe-
cially respectfully. They honor their joint commitments, ask per-
mission of their partner to break them, respect protest against
breaches, and provide a respectful excuse (and/or feel guilty) if
they do break a norm. And they share collaboratively produced
resources with their partner, but not others, with a sense of equal-
ity and mutual respect. And then, from soon after their third
birthdays, children begin to conform to the practices of their cul-
tural group and to insist on conformity to the groups social
norms from others (often using normative language). They
enforce conventional norms selectively on in-group members,
and, by 5 years of age, enforce even self-created norms on others,
demonstrating an understanding that the normative force ema-
nates not from adult authority (as suggested by Piaget 1932),
but rather from the process of social agreement. Children of
this age identify with their cultural group and judge that in-group
compatriots are obliged to one another more than to outsiders.
Other creatures do not experience a sense of obligation because
they do not socially interact with one another in any of these
ways.
The most general point is that the conditions which give rise to
a feeling of obligation are interactive in some very special ways. If I
have an obligation to you, then you have a right to expect me to
fulfill it: You have a claim on me, and I feel the possibility of my
debt to you if I do not meet it. But you cannot make this claim on
me unilaterally; simply saying you have a claim on me does not cre-
ate an obligation. To feel a sense of obligation, I must recognize
the legitimacy of your claim. In the current account, this recogni-
tion of legitimacy occurs in, and only in, the context of some
social body, we, that unites us and supports this legitimacy nor-
matively because we not only collaborate to pursue shared goals,
but we also collaborate to self-regulate the collaboration. The pro-
totypical situation for a feeling of obligation is thus one in which
you and I voluntarily enter into some kind of shared agency in
which we both recognize the legitimacy of the claim-obligation
relationship that is thereby created. In the legal world, a contract
is a chosen obligation.
And so, to describe the architecture of the human sense of
obligation in the mature individual, we need two key components.
The first begins with the general primate sense of instrumental
pressure, in which the individual feels a kind of rational force
to do what it needs to do to achieve its goal: To get that apple,
I must climb that tree. But what has happened in humans is
that, in the context of their species-unique forms of interdepen-
dent collaboration, this kind of individual practical rationality
has been transformed into a new kind of cooperative rationality.
Within a collaborative partnership, I have not only instrumental
goals toward the outside world, but also interpersonal goals
with respect to my valued partner and our partnership. And, in
the context of an interdependent partnership in which we both
understand that the normative standards of role performance
apply to us both equally, I cannot help but see my partner as
an equal, and she me, engendering the sense of mutual respect
that generates excuses, justifications, and apologies for breaches.
For us to harvest those apples together cooperatively, and to main-
tain our cooperative relationship over time, we must each play our
mutually known roles up to standard, while at the same time
respecting one another by living up to our commitments, by ask-
ing permission to break our commitment, and by sharing the
spoils fairly.
The second component begins with the general primate pro-
cess of self-regulation, in which individuals monitor their own
perceptions and actions from an executive level in order to
learn and adapt. But what has happened in humans is that indi-
viduals living in an interdependent world must care about what
others think of them as collaborative partners and cultural com-
patriots and so there occurs a kind of social self-regulation,
which is unique to the species (Engelmann et al. 2012). The
type of social self-regulation that is most critical for understand-
ing the human sense of obligation is conducted by the we that
an individual forms with a collaborative partner or cultural com-
patriot. Critically, as opposed to reputation-based theories of the
evolution of morality, the key is not just what they will think of
me if I do X (which is strategic and associated with the emotion of
shame), but what we will think of me if I do X based on our
shared values (which is moral and associated with the emotion
of guilt). Ones sociomoral identity derives from participation in
and contributions to a we, and to maintain that identity one
simply must respect the judgment of that we over my individual
judgments (a we > me valuation). The sense of obligation has a
coercive (negative) quality because it is a response to a claim
nay, a threat to my identity from the valued partners and/or
compatriots with whom I am interdependent. I internalize this
normative pressure, in Vygotskian fashion, and use it to avoid
feeling guilty and losing my sense of who I am socially.
To summarize, we may thus say that the human sense of obli-
gation is the internalized social/rational pressure from a joint or
collective self-regulating agent
we”–which comprises myself
in my sociomoral identity and one or more respected second-
personal agents with legitimate claims on me as an interdepen-
dent collaborative partner or cultural compatriot to do what
we expect me to.
4. Conclusion
Hume was the first to recognize that the morality of justice/fair-
ness, and the sense of obligation that goes along with it, is struc-
tured by a certain kind of social interaction. He thought that this
was societal convention, but it turns out there are other less con-
ventionalized forms of collaborative social engagement that still
represent enough of an agreement, even if implicit, to induce a
feeling of obligation to ones partner. Darwall and other social-
relational theorists have focused on the spectator aspect of
Humes approach, and its inability to account for some of the
key features of a sense of obligation, including its pre-
emptiveness, its negative valence, and its imprimatur of legiti-
macy. They have attempted to explicate various features of the
second-personal standpoint, and the nature of second-personal
agents, that correct this shortcoming. However, these social-
relational theorists have not given much attention to the
Tomasello: The moral psychology of obligation 11
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
underlying psychology that gives rise to the forms of social
engagement requisite for the individual to feel a sense of obliga-
tion to other persons.
In this article I have retained the social-relational philosophers
insights about the second-personal standpoint, but have tried to
dig deeper into the social-interactive situations in which the
human sense of obligation arises and operates. I have done that
by focusing on processes of shared intentionality as a mode of
social engagement that creates a joint or collective agent we,
especially as young children are first learning to collaborate.
Convention or explicit agreement can play a role in interactions
structured by shared intentionality, but they need not. Even
3-year-old children behave in ways that evidence a sense of
responsibility to their collaborative partner not only deferring
to their partner but also by taking leave, making excuses, and
feeling guilty, as appropriate since members of a joint agency
both see one another as equals and subordinate their own goals
to those of the partnership. After 3 years of age, childrens emerg-
ing group-mindedness brings with it the universal and objective
sense of obligation ch aracteristic of adults, whose social identity
comes from their role as members of their culture and/or moral
community. Only in such situations of shared agency with others
do individuals imbue the claims of others with the sense of legit-
imacy characteristic of a sense of obligation.
I began this account with the observation that the sense of
obligation is presumably a motivation (what else?), but that it is
a decidedly peculiar one. Let us end with a characterization of
this peculiarity by means of a classification. In the current view,
the human sense of obligation is best considered as a kind of self-
conscious motivation, analogous to the self-conscious emotion of
guilt. And, indeed, obligation is intimately related to guilt, as most
often guilt is about not living up to ones obligations. Both guilt
and obligation have to do with ones sense of who one is: I
must do this because that would just not be me. The sense of
obligation may thus be considered as a self-conscious motivation
because it derives from a kind of threat from a we, into which
one has entered, that one might lose ones cooperative or moral
identity within that we. It is not clear whether there are other
motivations that one might also want to call self-conscious,
other than closely related motives such as a sense of responsibility
or the like. But in either case, this would seem to be an apt cate-
gorization of the peculiar nature of the sense of obligation as one
of humans most important moral motivations.
In all, I would argue, recognizing the insights of the second-
personal philosophers and related approaches, and undergirding
them with the psychological foundation of shared intentionality,
provides the most comprehensive account to date of the underly-
ing psychology of the human sense of obligation.
Notes
1 Evolutionarily, joint commitments to collaborate are a key way of mitigating
risk, as partners make sure that they both know in common ground that they
are depending on one another, and so they assure one another that they can be
depended upon to behave in expected ways.
2 Brosnan and de Waal (2003) claimed that capuchin monkeys have a sense of
fairness. There are six published failures to replicate their results (with both
monkeys and chimpanzees) using appropriate controls from five other labora-
tories (for a review, see Tomasello 2016, pp. 3234).
3 Of course, children this young do not view the adults with whom they are
interacting as co-equals in general. But when they are rolling a ball back and
forth or building a tower together, they are, in the context of that play activity,
co-equal play partners.
4 Also important is the fact that there is much cultural variability in how
humans view reciprocity: Some so-called gift cultures act as though every pro-
social act creates an obligation in return, whereas many other cultures do not.
Reciprocitys tie to obligation is thus culturally contingent.
Open Peer Commentary
Differentiating between different
forms of moral obligations
Rajen A. Anderson
a
, Benjamin C. Ruisch
b
and David A. Pizarro
a
a
Department of Psychology, Cornell University, Ithaca, NY 14853-7601 and
b
Department of Psychology, Ohio State University, OH 43210.
[email protected] http://rajenanderson.com
[email protected] http://benrusich.com
[email protected] http://www.peezer.net
doi:10.1017/S0140525X19002589, e57
Abstract
We argue that Tomasellos account overlooks important psycho-
logical distinctions between how humans judge different types of
moral obligations, such as prescriptive obligations (i.e., what one
should do) and proscriptive obligations (i.e., what one should not
do). Specifically, evaluating these different types of obligations
rests on different psychological inputs and has distinct down-
stream consequences for judgments of moral character.
Tomasello draws from research on nonhuman primates and
human children to position moral obligation as a uniquely
human motivation, arguing that the psychological construction
of a shared agent we works to direct and self-regulate collabo-
rative activities in humans, giving rise to a sense of moral obliga-
tion. However, we argue that this account, while illuminating,
overlooks key distinctions between different kinds of moral obli-
gations and, importantly, the distinct psychological processes
that they entail. Among the most central of these distinctions is
that found between prescriptive obligations (i.e., obligations to
engage in certain positive, beneficial behaviors; e.g., one should
help others in need) and proscriptive obligations (i.e., obligations
not to engage in certain negative, harmful behaviors; e.g., one
should not hurt others). When we fulfill and adhere to prescrip-
tive obligations, we generally earn praise and gratitude; when we
violate proscriptive obligations, we generally earn blame and pun-
ishment. Additionally, failures to meet prescriptive obligations
and non-violations of proscriptive obligations are relatively less
relevant to observers (e.g., Haidt & Baron 1996).
Importantly, social psychological research has revealed differ-
ences between how prescriptive fulfillments and proscriptive vio-
lations are evaluated. Adults tend to judge proscriptive morality as
concrete, mandatory, and duty-based, while viewing prescriptive
morality as abstract, discretionary, and based in either duty or
desire; even framing the same basic moral act as either prescrip-
tive or prescriptive can change peoples judgments (Janoff-
Bulman et al. 2009). Additionally, adults treat beliefs about
12 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
immoral acts (i.e., violations of obligation) as more objective,
agreed upon by others, and true than beliefs about moral acts
(i.e., fulfillments of obligation; Goodwin & Darley 2012). On
the whole, then, proscriptive obligations appear to have more psy-
chological weight than prescriptive obligations.
It may be possible to reconcile these asymmetries within
Tomasellos theoretical framework for example, it may be that
proscriptive obligations entail a greater sense of we in their for-
mation and enforcement but more work will be necessary to
assess these possibilities.
Additionally, the process by which observers judge violations
of obligation and fulfillments of obligation also appears to differ.
For example, im moral, obligation-violating acts tend to elicit more
causal attribution and counterfactual thinking than moral,
obligation-fulfilling acts (Bohner et al. 1998; Bostyn & Roets
2016; Roese & Olson 1997). In addition, although agent inten-
tionality influences the perceived morality and immorality of
both obligation-fulfilling acts and obligation-violating acts, inten-
tionality appears to matter more for evaluating blameworthy acts
than praiseworthy acts (Guglielmo & Malle 2019; Ohtsubo 2007;
Pizarro et al. 2003). For example, both adults and children judge
unintended, obligation-violating side effects (of a persons
actions) to be blameworthy. However, they fail to judge unin-
tended, obligation-upholding side effects to be equally praiseworthy
(Knobe 2003a; 2003b; Leslie et al. 2006). People also more readily
incorporate the magnitude of the consequences of proscriptive obli-
gations than prescriptive obligations into their judgments of the
agent (Gneezy & Epley 2014;Klein&Epley2014). Together, this
research suggests that judgments of proscriptive obligations incor-
porate factors related to causality, intentionality, and consequences
more than do judgments of prescriptive obligations.
Importantly, research suggests that even young children have
an awareness of this distinction between prescriptive and pro-
scriptive violations. For example, children have been shown to
exhibit better memory for negative, obligation-violating individu-
als than positive, obligation-fulfillin g individuals (Barclay &
Lalumiere 2006; Kinzler & Shutts 2008). Additionally, children
as young as 14 months have greater difficulty following dos
than donts (Kochanska et al. 2001). These findings suggest that
these asymmetries do not simply reflect second step (sect. 2,
para. 2) differences attributable to culture-specific learning, but
rather emerge at an earlier onto genetic stage.
These differences in judgments of prescriptive and proscriptive
obligations suggest that there are important nuances to how
developing humans learn about the moral obligations of their
group and culture and that the processes by which we learn
about, represent, and evaluate prescriptive obligations (e.g., to
obey our elders) may be different from those of proscriptive obli-
gations (e.g., to not harm others).
Additionally, there is also evidence that the relevant weight
accorded to each of these forms of obligation can differ as a func-
tion of the specific context in which they are embedded. For
example, these two broad classes of moral obligation also seem
to operate somewhat distinctly across intergroup boundaries.
This appears to be an important caveat to Tomasellos claim
that obligation applies to, and only to, ones cultural compatri-
ots (sect. 2.2, para. 2). Whereas we agree that this claim generally
holds true regarding prescriptive obligations (e.g., there is little
expectation that one will help members of cultural outgroups),
proscriptive obligations seem to be more common across inter-
group boundaries (e.g., the obligation not to willingly harm mem-
bers of cultural outgroups).
One apparent example of these asymmetries is the (rapidly
growing) number of public apologies made by leaders of majority
(racial/ethnic, religious, and/or cultural) groups for past injustices
to minority groups apologies which, almost without exception,
center on violations of proscriptive obligations not to harm, rather
than violations of prescriptive obligations (Blatz et al. 2009; Lazare
2004).
As Tomasello suggests, these cross-group apologies may indi-
cate an expanded sense of all of humanity as in ones in-group
moral community (sect. 2.2, para. 2). However, his account
does not explain these apparent asymmetries in how prescriptive
and proscriptive obligations operate across group boundaries.
We suggest that these prescriptive/proscriptive asymmetries
may offer Tomasello a promising opportunity to refine his theory
of moral obligation. These differences in how observers evaluate
proscriptive and prescriptive obligations suggest that there may
be different forms of obligation, each utilizing distinct psycholog-
ical processes. At the very least, different moral obligations appear
to engender different responses when they are upheld or violated.
What psychologically distinguishes prescriptive obligations from
proscriptive obligations? How could such differences emerge?
For a complete account of the psychology of moral obligations,
these questions ought to be addressed.
Obligations to whom, obligations to
what? A philosophical perspective on
the objects of our obligations
Kati Kish Bar-On
The Cohn Institute for the History and Philosophy of Science and Ideas, Tel Aviv
University, Tel Aviv Yafo, Israel, 6997801.
[email protected] http://telaviv.academia.edu/KatiKish
doi:10.1017/S0140525X19002395, e58
Abstract
Tomasello strives to understand the underlying psychology
behind the human sense of obligation, but he only addresses a
specific kind of obligation: to other human beings. We argue
that in order to account for the psychological underpinning of
human behavior, one should also consider peoples sense of
commitment to non-human entities, such as ideals, values,
and moral principles.
Tomasello presents a compelling analysis of the motivating force
behind humans sense of obligation, focusing on the intersubjec-
tive structure of an obligation. However, obligations are not always
immersed in agreements only between individuals. Occasionally,
they are promises we make to ourselves, our commitments to a
particular ideal of living or a moral value entities that
Tomasello does not discuss. These two different types of obliga-
tions can together explain individuals behavior. If Bob is impu-
dent to Charlie and Alice condemns Bobs behavior, Alices
criticism may derive from her heartfelt commitment to a certain
principle of proper behavior to which she holds everyone account-
able; she does not necessarily think that Bob has a sense of
Commentary/Tomasello: The Moral Psychology of Obligation 13
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
obligation to Charlie or anyone else. She holds Bob accountable to
the standard itself, not to other people. Alice cares about the ideal
of proper behavior; therefore, it is important to her that people fol-
low a certain behavioral standard when engaging with others.
The philosopher Harry Frankfurt argued that human behavior is
shapedbythethingswecareabout(Frankfurt1982). Although eth-
ical considerations regulate our relations with other people (using
moral obligations), we often do not find the requir ements of ethics
to be the only things we care about. Even people with a strong sense
of moral obliga tions to others can care equally about ideals such as
being loyal to a family tradition or can devote themselves to ecolog-
ical principles of fighting climate change (Frankfurt 2006).
Some people find moral obligations to be their most important
obligations, above all other commitments. Others may choose to
intentionally violate a moral obligation to another person not
because there is a stronger moral obligation to which they are
committed, but rather because they consider a certain value,
ideal, or course of action to be more important to them than
meeting the demands of moral obligations to others. Frankfurts
work draws our attention to the possibility that a unanimous hier-
archical scale of obligations (where morality is superior to all
other commitments) may not exist. An individuals sense of obli-
gation to other people as well as to specific values or standards
varies not only between people but also between situations: A per-
son can choose to fulfill his obligation to another individual in
one situation, but in a different circumstance he might choose
to obey his commitment to a certain value or ideal over a
moral obligation to a person.
Frankfurt has addressed this type of commitment as an inte-
gral part of ones inner identity, which serves as the reason and
motivation for ones actions. He writes:
A person who cares about something is, as it were, invested in it. He iden-
tifies himself with what he cares about in the sense that he makes himself
vulnerable to losses and susceptible to benefits depending upon whether
what he cares about is diminished or enhanced. Thus he concerns himself
with what concerns it, giving particular attention to such things and
directing his behavior accordingly. (Frankfurt 1988, p. 83)
People whose behavior is governed by their commitments to the
ideals they care about rather than by their moral obligations to
others may be considered self-centered or judged as a person
who lacks empathy. However, as Frankfurt has pointed out, the
structure of peoples personality is more complex than a one-
dimensional scale of morality on one end and self-interest on
the other. He argued that persons may feel committed to certain
cultural or religious ideals that derive neither from moral nor ego-
istic considerations and may pursue those nonmoral ideals with-
out considering their own personal goals (Frankfurt 2004).
Even though Frankfurt challenged the widely accepted author-
itative nature of moral obligations, he did not claim that our rela-
tionships with other people or the moral requirements for
maintaining those relationships are not important to us. He
offered the possibility that other types of commitmen ts may
count as heavily or even more heavily with us, and he held that
one should not assume that moral obligations always override
them. For Frankfurt, what guides our behavior is not our moral
or nonmoral obligations per se, but rather our attitude toward
them: how much we care about these obligations and how impor-
tant it is for us to carry them out.
According to Frankfurt, the fact that one cares about a certain
thing is constituted by a complex set of cognitive dispositions, but
he did not account for the interpersonal factors that affect those
dispositions. The role of an individuals social environment and
group expectations in shaping human behavior is, to some extent,
left out of Frankfurts discussion. To fill the lacuna, let us return
to Alices disapproval of Bobs behavior: Even if Alice profoundly
cares about a certain ideal of proper behavior, why should she
hold Bob accountable to the same ideal? What urges her to con-
demn Bobs acts? Whereas Frankfurt did not engage in this type
of question, Tomasello considers the societal aspects that are
missing from Frankfurts account. In Tomasellos view, the origins
of Alices expectations may derive from her view of herself, Bob,
and Charlie, as members of the same cultural group. As such, all
group members are obligated to conform to the groups ways or, if
not, they must provide an explanation for their deviation. The
object of Alices sense of obligation may be a standard rather
than a person, but in any case, her cultural id entity and group
affiliation will always play a significant role in the process of cul-
tivating the things she cares about and her attitude toward
transgression.
To conclude, human or non-human entities can be the objects
of our feelings of obligation, and those, in turn, influence and
shape our behavior. My intention in this commentary was to
point toward an enhanced psychological account of humans
sense of obligation, including the approaches of both Frankfurt
and Tomasello. Each theory portrays only part of the picture;
together, they offer a more comprehensive account of individuals
feelings of obligation and the objects of those feelings.
Childrens everyday moral
conversation speaks to the
emergence of obligation
Karen Bartsch
Psychology Department, Wyoming University, Laramie, WY 82071-3415.
[email protected] http://www.uwyo.edu/psychology/faculty/bartsch.html
doi:10.1017/S0140525X19002358, e59
Abstract
For Tomasellos proposed ontology of the human sense of moral
obligation, observations of early moral language may provide
useful evidence complementary to that afforded by experimental
research. Extant reports of childrens everyday moral talk reveal
patterns of participation and content that accord with the pro-
posal and hint at extensions addressing individual differences.
In his account of the ontogeny of our human sense of moral obli-
gation, Tomasello pinpoints its origin in early joint intentional
action and describes two developments in the preschool years:
the first regarding interpersonal obligation between collaborative
partners and the second regarding norm-based morality within
a cultural group. Tomasello invokes extensive support from clev-
erly designed experimental studies of young childrens behavior
(e.g., Gräfenhain et al. 2009; Rekers et al. 2011), which have the
dual virtues of bypassing young childrens verbal limitations
and facilitating cross-species comparisons. But Tomasellos
14 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
reliance on experimental findings raises the question of how well
the account tallies with real-life observations.
I suggest that compl ementary evidence is available in observa-
tions of childrens everyday interactions, especially conversations
about morality. To be clear, Tomasello does incorporate research
involving language, such as his own finding that children react to
transgression with protest that reflects normativity (Rakoczy et al.
2008). But a different perspective is afforded by observations of
childrens real-life interactions. For instance, in exploring emerg-
ing moral sensitivity as revealed in two childrens at-home talk
with adults (Wright & Bartsch 2008), we noted patterns that
accord intriguingly with Tomasellos account. We examined
1,333 conversations involving moral terms (e.g., good,
wrong,”“mean) sampled from Abe and Sarah as they
aged from 2.5 to 5 years (Wright & Bartsch 2008), utilizing
archived transcriptions from the CHILDES database
(MacWhinney 2000). Surprisingly, such conversations were
most frequent, relative to other talk, when children were 2.53,
compared to 45, years of age. We speculated that the early inten-
sity of such talk reflected the new autonomy, mobility, and active
participation associated with the terrible twos, noting also its
coincidence with frequent talk about the desires of the children
and adults, a recognized milestone in theory-of-mind develop-
ment (e.g., Bartsch & Wellman 1995). Tomasellos proposal
expands the explanation: Perhaps as 2- and 3-year-olds, Abe
and Sarah were constructing with their collaborators (here, con-
versational partners) the hypothesized second-personal morality
that constitutes initial sensitivity to obligation. The ensuing
decline in such conversation, relative to other talk, perhaps
reflected the second phase when an acquired understanding of
group norms reduced explicit reference to moral rules, now
assumed to be universally recognized (e.g., Mamman et al. 2018 ).
Another characteristic of Abes and Sarahs early moral conver-
sations that tallies with Tomasellos account is the active role played
by children in such discussions (Wright & Bartsch 2008). Far from
being passive recipients, both children surpassed their adult inter-
locuters in initiating moral conversations and did so as though they
were exploring the rules and roles of those involved. Even as 2- and
3-year-olds, Abe and Sarah used moral terms frequently to give and
request reasons (e.g., because hes nice to nice people, Wright &
Bartsch 2008, p. 61) more than for other purposes, such as to com-
municate feelings or to disapprove of actions, a functional disparity
that increased with age. Abe at age 3, for instance, said, You could
have put it on the floor for me. I asked you so you should have
done it (Wright & Bartsch 2008, p. 61).
Young children are not only surprisingly active in everyday
moral conversation, as fits with Tomasellos proposition that
they are constructing a sense of moral obligation, but their favored
topics also accord with the account. Abes and Sarah
s conversa-
tions focused on mostly internal as opposed to external motiva-
tions, specifically on dispositions and behavior, primarily those
of other people, and especially on bad behavior (Wright &
Bartsch 2008). Other researchers have similarly reported young
childrens fascination with others dispositions and transgressions,
observing, for instance, that children focus more on a siblings,
than on their own, transgression (e.g., Dunn & Munn 1986;
Ross & den Bak-Lammers 1998). Dunn (1987), who conducted
comprehensive and systematic longitudinal studies of conversa-
tion among family trios consisting of a parent, a toddler, and
an older sibling, reported that by age 2, children communicated
openly about both obligation and blame with respect to family
social rules and others feelings. These observations accord with
Tomasellos characterization of emergent obligation, adding per-
spective and detail from the childs actual context and voice.
Observations of childrens everyday conversations may also
provide clues about individual differences in a developing sense
of moral obligation. For example, although both Abe and Sarah
initiated most moral discussions, Abe was active in 80% of conver-
sations compared to Sarah at 60%, rates maintained throughout
the several years (Wright & Bartsch 2008). Conversation content
also differed: For Abe, feelings and others welfare was the
modal topic, characterizing 25% of moral conversations, while
for Sarah issues of obedience and punishment were modal at
50% (Wright & Bartsch 2008). These differences hint at divergent
paths in moral focus and maybe in a sense of obligation. Evidence
across studies suggests that contexts may figure importantly in
individual trajectories. For Abe and Sarah, most moral conversa-
tions concerned immediate interpersonal interests rather than
impersonal and abstract topics such as social rules (Wright &
Bartsch 2008), consistent with Tomasellos characterization of
the earliest sensibility regarding obligation. Dunn (1987), however,
reported an increase over toddlerhood in the frequency with which
mothers and older siblings spoke to toddlers about social rules and
broken or flawed objects. It may matter whether early interactions
involve only the child and parent, as in the observations of Abe
and Sarah, as opposed to involving the child, a parent, and an
older sibling, as in Dunns(1987) research. Such comparisons
highlight the role of context, a factor acknowledged by
Tomasello in his discussion of cross-cultural variation. Intensive
observations of conversations suggest that, even across families,
who is talking and what is talked about matter. For instance, pre-
tend play has been observed to be a common context for moral
discussion, although an activity that differs across families (e.g.,
Dunn 1987; Wright & Bartsch 2008). These examples suggest
that extant and future observational studies can contribute not
only specificity regarding the nature of critical early interactions
but also to an understanding of emergent individual differences
as they relate to a developing sense of moral obligation.
The role of affect in feelings
of obligation
Stefen Beeler-Duden, Meltem Yucel
and Amrisha Vaish
Psychology Department, University of Virginia, Charlottesville, VA 22903.
https://pages.shanti.virginia.edu/Social_Development_Lab_3/
[email protected] www.meltemyucel.com
(corresponding author)
https://pages.shanti.virginia.edu/Social_Development_Lab_3/
doi:10.1017/S0140525X19002449, e60
Abstract
Tomasello offers a compelling account of the emergence of
humans sense of obligation. We suggest that more needs to be
said about the role of affect in the creation of obligations. We
also argue that positive emotions such as gratitude evolved to
Commentary/Tomasello: The Moral Psychology of Obligation 15
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
encourage individuals to fulfill cooperative obligations without the
negativ e quality that Tomasello proposes is inherent in obligations.
Tomasello offers a compelling account of the evolutionary and
ontogenetic emergence of the uniquely human sense of obliga-
tion. The target article alludes to some affective experiences in
these feelings of obligation but does not directly address the
role of emotions. Further, to the extent that Tomasello does con-
sider the role of affect, he describes obligations as having a funda-
mentally coercive (negative) quality. In this commentary, we
propose (1) a more central role of affect in the development of
a sense of obligation, and (2) that positive emotions such as grat-
itude represent an evolutionary solution to the fundamentally
negative quality of obligations.
First, Tomasello emphasizes the development of obligation
through the meyou equivalence established first through collabo-
rative activities and then in cultural groups. This account is cer-
tainly persuasive, but we think that it is not sufficient. Research
shows that from the very start, childrens collaborative interactions
are also heavily affect-laden, and this affect is vital for establishing
their sense of obligation. According to the affect-as-information
theory (Storbeck & Clore 2008), affective signals provide children
with cues about what is safe and important in the environment.
For example, visual cliff experiments show that even 1-year-olds
take their parents nonverbal signals into account and use their
emotional expressions to make decisions about their future behav-
iors (e.g., whether or not to crawl across the cliff; Sorce et al. 1985).
More pertinently, caregivers use affect to convey vital informa-
tion about obligations to infants and young children. For instance,
parents use distinct affect when communicating with infants
about norm violations compared to pragmatic violations (Dahl
&Tran2016). Parents even use distinct affect when comm unicat-
ing about moral versus other kinds of norm violations: They use
angry vocalizations when their infant violates a moral norm (e.g.,
hits another person) but use fearful vocalizations when their
infant violates a prudential norm (e.g., harming themselves;
Dahl et al. 2014). This affective information guides childrens
attention to important distinctions between various types of social
norms and the obligations that accompany those norms (Arsenio
& Ford 1985). This in turn helps children to successfully navigate
their obligations and avoid breaking commitments. Affect-laden
testimonies, for example, moralize novel rule violations and elicit
moral judgments from children (Rottman & Kelemen 2012;
Rottman et al. 2017). Similarly, among young children as well
as adults, witnessing violations of moral norms induces higher
physiological arousal than witnessing violations of conventional
norms (Yucel et al., in press). As mentioned by Tomasello, as
children begin to differentiate these social norms from one
another, they begin to understand who is obligated to adhere to
particular norms and when an individual is obligated to do so.
Affect-laden communication and childrens own affective experi-
ences thus aid children in developing a sense of obligation and
help children work out the nuances of the particular system of
obligation in which they must function.
Second, Tomasello argues that obligation makes us do things
we do not want to do but feel we must do. He emphasizes the neg-
ative emotions associated with obligation (guilt, blame, and resent-
ment) and argues that positive emotions (such as gratitude) cannot
account for a sense of obligation. We propose, however, that pos-
itive emotions such as gratitude, which motivate us to reciprocate
favors to our benefactors, may have evolved precisely to counter
the fundamentally negative quality of obligation: to turn actions
such as reciprocity into something we want to do, not only because
it is right but also because it feels good. On its face, this goes
against Tomasellos argument that obligation cannot involve
things we want to do. Yet perhaps the ultimate and proximate sto-
ries diverge on this point: In our evolutionary history, we needed
psychological mechanisms to make us put aside our selfish inter-
ests and invest in our cooperative, interdependent relationships (as
Tomasello himself has elegantly argued: e.g., Tomasello 2016a).
Emotions are just such psychological mechanisms (Krebs 2008;
Nesse & Ellsworth 2009). It is highly likely, then, that some emo-
tions have evolved to help us fulfill our obligations to others. Some
of these emotions are negative (resentment, guilt), but some are
also positive (gratitude). At the proximate (ontogenetic) level,
these positive emotions do not seem to carry the fundamentally
coercive quality of obligations. However, we submit that positive
emotions are precisely the evolutionary trick that allows us to hap-
pily carry out many of our social obligations. Positive emotions are
part of the toolbox that allows us to meet our obligations, and to
do so without resenting them.
Taken together, we seek to highlight the important functions
that affect serves in the emergence of the human sense of obliga-
tion. We presented evidence from the affect literature and argued
that affect plays an important role in how obligations are socialized
and maintained during development. Moreover, we suggested that
positive emotions may have evolved to counteract the negativity
associated with the sense of obligation one feels to ones collabora-
tive partners and cultural group. Thus, we argue that a full account
of the evolutionary and ontogenetic emergence of humans sense
of obligation must include the vital role of affect in the creation,
enforcement, and maintenance of these obligations.
NOTE
Beeler-Duden and Yucel contributed equally.
The sense of obligation is
culturally modulated
Andrea Bender
Department of Psychosocial Science & SFF Centre for Early Sapiens Behaviour,
University of Bergen, N-5020 Bergen, Norway.
[email protected] https://www.uib.no/en/persons/Andrea.Bender
doi:10.1017/S0140525X19002371, e61
Abstract
Tomasello argues in the target article that, in generalizing the
concrete obligations originating from interdependent collaboration
to ones entire cultural group, humans become ultra-cooper a tors.
But are all human popula tion s cooperative in similar wa ys? Based
on cross-cultural studies and my o wn fieldwork in Polynesia, I
argue that cooper a tion varies along sever al dimensions, and that
the underlying sense of obligation is cultur ally modulated.
Tomasello presents a compelling account of how the human sense
of obligation arises from shared intentionality and interdependent
collaboration. Developing this concrete, collaboration-dependent
16 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
obligation into a generalized support of ones cultural group
(obligation period), he argues, turns humans into a highly coop-
erative species. Although cultural variability in this second step is
acknowledged, its profound impact appears to be underestimated.
Obligation is one of the four deontic modalities, along with
ban, permission, and release from obligation (often expressed
by way of modal verbs: must,”“must not,”“may, and need
not). These modalities are systematically interrelated in a square
of opposition, constituting the structure of the deontic system
(Beller 2012). People are highly competent in drawing inferences
based on these interrelations, which must remain in place to pre-
serve the systems consistency and operability, such as that obliga-
tion entails permission, or that something forbidden cannot
simultaneously be prescribed (Beller 2008; 2010). Due to these
logical exigencies, deontic systems are invariable on an abstract
level. What does vary across cultures is their content: the concrete
things that are forbidden, prescribed, or permitted.
Promises are a textbook example at the intersection of the
human sense of obligation and cooperation. Promises create a
social contract between the two parties involved, cutting across
five psychologically relevant levels: (1) As an attempt to induce a
behavioral change in the addressee, promises reflect a specific
motivation, the wish to initiate cooperation, and (2) they are for-
mulated in a specific linguistic manner. (3) Promises entail deontic
implications, generating an obligation for the speaker, contingent
on a cooperative act of the addressee in the case of a conditional
promise. For promises to work, it is essential that the ensuing obli-
gation is perceived as binding, as the addressee has only the speak-
ers word to go on. (4) On the behavioral level, the involved parties
decide whether or not to cooperate, with either outcome then (5)
eliciting distinct affective responses (Beller et al. 2005).
Some core characteristics are implicated in the very concept of
promises and hence should be universal. Their structure is deter-
mined by actions, goals, and expectations; they entail asymmetries
in terms of ensuing obligations and the temporal sequence of
decisions to be made; and their binding force should be indepen-
dent of how close the relationship between the parties is. Still, a
study with participants from Germ any, China, and Tonga
revealed cultural variation on almost all levels (Beller et al.
2009). For instance, the linguistic formulation considered most
appropriate varied with culture-specific communication styles,
and affective responses to a kept or broken promise depended
on display rules for emotions. Crucially, even the deontic implica-
tions were modulated by cultural conventions. In Tonga, a
Polynesian archipelago in the Western Pacific, the very ut terance
of a conditional promise was found to exert pressure on the
addr essee that is, an obligation to be responsive to the promise
hence coercing an act of cooperation not necessarily volunteered
otherwise. Interestingly, this was accompanied by a reduced obli-
gation for the speaker to actually keep the promise. It is as if con-
ditional promises were simply understood as a request for a favor
(I want you to do this for me). Since the addressee is obligated
to fulfill this wish, the promised return-favor may be discounted.
In other words, obligations originate not only from the deontic
structure of promises, but also load on external rules arising from
the cultural value system. In Tonga, this includes the prime virtue
of reciprocal help ( fetokoniaki), which is grounded in respect and
concern for others, is reflected in and reinforced by a strong ori-
entation towards the group, and obligates people to provide
mutual support and to share food and other resources (Bender
2007). Although this solidarity network incurs economic costs
for the individual, it also generates an informal insurance system
for all (Bender et al. 2002). Similar patterns have been observed
more widely both within and across the small island communities
of the Pacific (e.g., Hage & Harary 1996; Petersen 2000). And yet,
this is only one possible outcome of the cultural patterning of
cooperation and obligation.
Two large-scale studies by Henrich et al. (2005; 2010) demon-
strated astounding variability in what different cultural groups
hold to be cooperative and fair. Using economic games to assess
the willingness to share with anonymous members of ones group,
participants were found to differ substantially in the share they
were willing to offer, in the size of offers they were willing to
accept, or in the expenses they were willing to invest in the pun-
ishment of those who violated norms of cooperation. In some
groups, much lower shares were both offered and accepted than
is typical for WEIRD (Western, educated, industrialized, rich,
and democratic) populations, whereas other groups reject ed
even highly generous offers. Respective tendencies co-varied sys-
tematically with characteristics of the group (such as community
size) and its cultural institutions, including economic organization,
the structuring of social inte ractions, or the type of religion.
Especially in small groups the default state in large parts of
human history the concern with fairness appeared to be lower
in situations lacking relationship information, suggesting that
modern prosociality is not solely the product of an innate psychol-
ogy, but also reflects norms and institutions that have emerged over
the course of human history (Henrich et al. 2010, p. 1480).
In a nutshell, obligation period is modulated by cultural conven-
tions and practices along several dimensions: by shaping the con-
ceptualization of self-declared commitments, the kinds of
obligations perceived as arising from them, and even the emotional
responses linked to them. This impacts on the extent to which the
sense of obligation is generalized to in-group strangers and on the
scope of cooperation deemed appropriate, rendering culture one of
the most powerful forces in forming human cognition (Bender &
Beller 2019) and social behavior (Henrich et al. 2005). Considering
this profound impact enables the surprising insight that culture
itself evolved to stabilize and generalize the predisposition for
cooperative relationships in our species by fostering and molding
the sense of obligation, even if in culture-specific ways.
Tomasello on we and the sense
of obligation
Michael E. Bratman
Philosophy Department, Stanford University, Stanford, CA 94305.
https://philosophy.stanford.edu/people/michael-e-bratman
doi:10.1017/S0140525X19002383, e62
Abstract
Tomasello explores four interrelated phenomena: (1) joint inten-
tional collaboration; (2) joint commitment; (3) self-regulative
pressure from we’”; and (4) the sense of interpersonal obliga-
tion. He argues that the version of (1) that involves (2) is the
source of (3) and so the source of (4). I note an issue that arises
once we distinguish two versions of (3).
Commentary/Tomasello: The Moral Psychology of Obligation 17
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
To masello in the target article exploresfourinterrelatedphenomena:
1. joint intentional collaboration
2. joint commitment
3. self-regulative pressure from we’” (sect. 2.1.3, para. 3)
4. sense of interpersonal obligation
His shared intentionality hypothesis aims to undergird (4)
with the psychological foundation of shared intentionality.
Tomasello sometimes suggests that (4) arises from (1).
However, he notes that a child can be just playing with the
adult spontaneously, in the absence of a joint commitment
(sect. 2.1.2.1, para. 5) But playing with [an] adult”–even if spon-
taneous is not merely playing alongside an adult. If the child is
playing with the adult then there is a kind of joint intentional col-
laboration, and both the child and the adult may well think: we
are playing together. There is a we. But, Tomasello notes, there
is not yet joint commitment; and, as I understand Tomasello,
there is not yet (4).
This complexity arises within the interim hypothesis that
participation in joint intentional collaboration, especially as initia ted
by a joint commitment, is the earliest source of childrens feeling
of obligation. (sect. 2.1.3, para. 5) This seems to say tha t (1) is the
source of (4), and (2) is just a special case of (1). But this does not
fit with the recognition of the possibility of (1) in the absence of (2)
and (4). So I think the best reading of Tomaselloshypothesisisthat
the source of the sense of obligation is (2), not simply (1).
What is joint commitment? Elsewhere Tomasello has said that
joint commitment consists in collaborative activity initiated
by an overt and explicit act of cooperative communication
(Engelmann & Tomasello 2018, p. 440). But, first, I take it that
the relevant overt acts will be, more specifically, forms of assur-
ance. And, second, if it is a joint com mitment, it is necessary
that all parties assure. So, I take the view to be that jointly inten-
tional collaborative activity that is initiated by such a web of assur-
ances is the source of the sense of obligation.
Further, Tomasello
s proposal is that (2) is the source of (4)
because (2) is the source of (3), and (3) in turn ensures (4).
When he writes that the sense of obligation is nothi ng
more or less than the motivational force that accompanies
the creation of a joint or collective agent we’…” (sect. 3, para. 6)
he is seeing a joint or collective agent we’” as involving the
sense of obligation, and, I take it, supposing that this we arises
from joint commitment.
We need to distinguish two versions of (3). Suppose the child
plays spontaneously with the adult in the absence of joint commit-
ment. Why is this a case of joint intentional collaboration, not just a
case of each merely playing alongside the other? In (Bratman 2014),
I propose (roughly) that in shared intentional activity each publicly
and interdependently intends the joint activity and that it go by
way of relevant intentions of each, mutual responsiveness, and
meshing subplans. This structure of intentions of each constitutes
their joint/shared intention so to act. Applied to our present
case, this explains a kind of self-regulative pressure from the
we, since both the child and the adult can reason instrumentally
concerning what is needed for their jointly intended playing
together. For example, the child can reason: As one of the interde-
pendent elements of our shared intention, I intend that we play
together; for us to play together, I need to give him the ball; so I
will. In this sense, (1) ensures a version of (3). But this weak ver-
sion of (3) simply involves instrumental reasoning concerning the
jointly intended end of playing together; it need not involve a sense
of obligation to the other. The child can reason instrumentally con-
cerning this jointly intended end of playing together without think-
ing that she owes it to the adult to give him the ball.
In contrast, in a strong version of (3) the self-regulation
involves a sense of obligation to the other. And Tomasellos
thought is that joint commitment ensures this strong version of
(3), and so thereby (4).
Given that joint commitment involves joint intentional collab-
oration, joint commitment ensures the weak version of (3 ). But
why does adding the cited web of assurances ensure the strong
version of (3), one that is not ensu red simply by joint intentiona l
collaboration?
Perhaps Tomasellos view is simply that it is a feature of our
human psychology that joint intentional collaboration that is ini-
tiated by such a web of assurances does in fact induce a
sense of obligation; so, when such a web precedes and initiates
joint intentional collaboration, it transforms the weak we of
joint intentional collaboration into the strong, sense-of-obligation-
loaded we. This would change the order of explanation and
appeal directly to a connection between (2) and (4), and then
thereby explain the connection between (2) and the strong version
of (3). More importantly, it raises a further question. Does the
structure of joint intentional collaboration that is initiated by
such a web of assurances induce a sense of obligation by virtue
of the role of shared intentionality in that structure? Well, it does
not do this solely by virtue of the role of intentional joint collab-
oration: that only ensures a weak we. Instead, it does this in part
by virtue of the web of assurances. It is that web of assurances that
is doing the work in going from a weak to a strong we. But such
assurances need not themselves be jointly intentional activities;
and they can occur in the absence of relevant jointly intentional
activities (think of a case of insincere assurances). So, what is
undergirding (4) involves a crucial element that is separable
from intentional collaborative activity. Is this compatible with
the idea underlying the shared intentionality hypothesis?
The joy of obligation: Human cultural
worldviews can enhance the rewards
of meeting obligations
Emma E. Buchtel
The Education University of Hong Kong, Hong Kong SAR, China.
https://repository.eduhk.hk/en/persons/emma-ellen-kathrina-buchtel
doi:10.1017/S0140525X19002607, e63
Abstract
Is it particularly human to feel coerced into fulfilling moral obli-
gations, or is it particularly human to enjoy them? I argue for the
importance of taking into account how culture promotes proso-
cial behavior, discussing how Confucian heritage culture
enhances the satisfaction of meeting ones obligations.
Why do humans fulfill moral obligations? Tomasello persuasively
argues that humans unusual ability to form a sense of
18 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
interdependence with others, therefore identifying with the group
and its norms, allows children to develop a sense of obligation to
follow cooperative social norms. Tomasello defines these obligations
primarily in terms of their coerciv e power, which force us to sub-
ordinate selfish desires to the demands of the group, supported by
social pressure and self-punishing guilt. Curiously (given
Tomasellos groundbreaking work, e.g., Tomasello 2016b;
Tomasello et al. 1993), culture plays a small role in this article,
beyond providing a group identity and, presumably, some of the
content of the norms that become obligatory. In this commentary,
I argue for the importance of studying the positive experience of ful-
filling obligations, and the role of culture in enhancing it, to under-
standing why humans adopt moral behavior.
In our ratcheted up societies (Tomasello et al. 1993), culture is
a key element in creating prosocial norms and making it likely
that we will fulfill them. Culture determines the content of
moral obligations (e.g., Miller & Bersoff 1992; Miller et al.
1990); consists of complex systems of beliefs and practices that
uphold and spread cooperation (e.g., Norenzayan et al. 2016);
changes the experience of fulfilling ones obligations (Buchte l
et al. 2018); and perhaps even changes whether or not absolute
impermissibility is a central aspect of morality (Buchtel et al.
2015). Although cultural influences necessarily build on childrens
initial propensities to learn social norms, the content of our par-
ticular normative cultures has enormous influence over whether
and why we follow those norms. To understand why humans ful-
fill obligations and responsibilities to one another, we must study
how specific cultures sustain those obligations.
For example, even moral impermissibility may be a more cen-
tral feature of Western concepts of morality than Chinese ones,
suggesting that the coercive nature of moral obligation might
not be the key universal human feature to be explained
(Anscombe 1958). In our study of Chinese lay prototypes of
immoral behaviors, we found a puzzling disconnect between
what was acknowledged to be most harmful (e.g., killing people)
and what was called immoral; the Chinese word for immoral was
most applicable to behaviors that were particularly uncultured or
uncivilized, such as spitting in the street or disrespecting parents,
and less applicable to criminally harmful behaviors such as steal-
ing or killing (Buchtel et al. 2015). This suggests that the catego-
ries of antisocial behaviors are differently organized in Confucian
heritage cultures than they are in Western heritage cultures, where
instead behaviors have been divided into those that are impermis-
sible (very harmful) versus not (Buchtel et al. 2015 ). Historically,
morality in China has been based on the teaching of Confucian
virtues such as benevolence and propriety, while criminals pre-
sumably beyond the motivational reach of virtue were dealt with
through the criminal law system (Bakken 2000). Rather than
emphasizing moral absolutism, Confucianism is instead described
as a form of virtue ethics (Angle & Slote 2013), according to
which morality guides character development so that the virtuous
can respond appropriately to different situations.
Similarly, conflict between the self and group needs is a classi-
cally Western concern, but not a central theme in Confucianism
(Buchtel et al. 2018). Instead, the obligations, duties, and responsi-
bilities associated with ones social role are perceived as an oppor-
tunity to realize and ennoble the self (Shun & Wong 2004).
Consider the experience of not breaking onesobligations but
meeting them. What allows us to feel joy by being a moral person?
Weve found that adult participants who are more influenced by
Confucian heritage cultures (vs. Western heritage cultures) are
more likely to associate an obligation to help others with positive
emotions and also with a sense of personal agency (Buchtel et al.
2018; see also Miller et al. 2011; Tripathi et al. 2018). It is likely
that Confucian heritage moral cultures strengthen the experience
of intra- and interpersonal rewards for responding to what others
think one ought to do. This current cultural difference has strong
parallels with philosophical differences between these two heritage
cultures: A Confucian admiration of those who fulfill obligations
sincerely (detailed in contemporary philosophers discussion of
Confucian role ethics, e.g., Ames & Rosemont 2014
), versus a
Kantian concern about avoiding the coercive nature of such obliga-
tions. However, along with the cultural difference, we also found
surprisingly strong evidence that Euro-Canadians also experienced
both positive emotion and a sense of personal agency when they
felt more obligation to help, suggesting that fulfilling duties may
be universally rewarding.
The role of cultural evolution in the creation of cooperative
humans and societies is a new and burgeoning research area
(e.g., N orenzayan et al. 2016). Like the focus on guilt and punish-
ment in the target article, much of the focus in cultural evolution
has been on how the sanctioning of norm violators motivates
cooperation and obedience to social norms. Yet, the above
research suggests that following norms generates a sense of agency
and positive emotions (Buchtel et al. 2018). Similarly, the pursuit
of eudaemonic activities such as prosocial behavior has been
linked to reward responses and increased well-being (e.g., Steger
et al. 2008; Telzer et al. 2014). Although moral behavior is
undoubtedly encouraged by punishment for norm violations,
we also need to know more about how cultures enhance the
rewards experienced when we meet prosocial norms.
Culture is a crucial feature of what enables humans to willingly
follow social norms. The psychological or invisible cultural envi-
ronment values, philosophies, religion has, because of
humans unique ability to create and learn culture, become a
vital tool in our historically endowed arsenal of survival mecha-
nisms. Assuming that the human ability to create and absorb cul-
ture is a key feature of human evolutionary success, then
knowledge of how different cultures encourage prosocial behavior
is essential to understanding how human children develop a pro-
pensity towards goodness.
Tomasellos tin man of moral
obligation needs a heart
Jeremy I. M. Carpendale
a
and Charlie Lewis
b
a
Psychology Department, Simon Fraser University, Burnaby, BC, V5A 1S6
Canada and
b
Psychology Department, Lancaster University, Fylde College,
Lancaster, LA1 4YW United Kingdom.
https://www.sfu.ca/psychology/about/people/profiles/jcarpend.html
https://www.lancaster.ac.uk/people-profiles/charlie-lewis
doi:10.1017/S0140525X19002462, e64
Abstract
In place of Tomasellos explanation for the source of moral obli-
gation, we suggest that it develops from the concern for others
already implicit in the human developmental system. Mutual
Commentary/Tomasello: The Moral Psychology of Obligation 19
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
affection and caring make the development of communication
and thinking possible. Humans develop as persons within such
relationships and this develops into respect and moral obligation.
Tomasello has a great talent for selecting crucially important top-
ics and carefully exploring them with brilliant experimental work
in collaboration with his group of talented colleagues. He pro-
poses collaborative interaction as a social interactive medium in
which obligation develops because others are recognized as
equals, and so equally deserving, and this leads to mutual respect.
The second step is to move beyond responsibility to one s partic-
ular collaborative partners and to extend obligation to ones social
group, as internalized pressure from a collective we.
We support Tomasellos goal of explaining the developmental
and evolutionary origins of the human sense of moral obligation
within an interactive framework. Although his approach is social
in the sense of focusing on individuals who interact, this already
presup poses rat her than explains the development of those individ-
uals. A more thoroughly social appr oa ch from a process-r elational
perspective proposes that persons develop within interaction
(Carpendale et al. 2013; Carpendale & Lewis 2004; 2006; 2015a;
2015b).
Instead of attempting to explain the emergence of a sense of
obligation later in development, concern for others is already
implicit in the typical human developmental system with its ori-
gins in mutual affection and caring. This is necessary to start the
developmental process early in the infants life, as seen in frequent
dyadic exchanges and the emergence of intense attachments by
6 months of age. Humans develop as persons within relationships
of mutual affection, and this transforms to mutual respect in the
sense of treating those others with care. Morality is based on
mutual affection (Piaget 1932/1965). Treating others as someone,
not something (Spaemann 2006), is already embedded in the
structure of communicative interaction that infants experience
in development the seeds for mutual respect (Carpendale
2018; Habermas 1990).
It is because human infants are born relatively helpless that
there is so much potential for their development. A strong posi-
tive emotional connection is a foundation for the human develop-
mental system in which infants develop as persons, and learn to
communicate, which makes thinking possible. Within their
intense social emotional relationships, infants first learn to com-
municate through coordinating their interaction with others. Such
communication is the basis of language and results in the devel-
opment of human thinking. All of this requires the social-
emotional cradle in which humans develop. Moral obligation is
not the result of realizing that others are equals and therefore
should be treated with respect. Instead, it is a natural outcome
of mutual affection and understanding. This caring and concern
for others is what later develops into a sense of obligation, first
to those close and, later, extended to others.
There is a missing link in Tomasellos expl anation. He sug-
gests that, in collaborating with others, children see them as
equal and so equally deserving. But this does n ot explain why
they feel obliged to them. We dont add moral oblig ation later
in development it is already implicit in the human develop-
mental system as a result of the nature of early relationships.
Infants are treated as persons, as participants in interaction. It
is the product of treating others as persons and responding to
them in everyday activity. Our inte rpretation of the research
showing that 3-year-olds fee l obligation to those they i nteract
with collaboratively is that children have experienced obligation
within the co mmunicative i nteraction they grow up in.
Conversation is a special case of collaborative interaction in
general, as Grice ( 1975) suggested, which i s extended to the
research settings involving collaboration. In conversation, fa iling
to respond to ot hers is morally accountable (Turnbull 2003).
Some children may occasionally be prompted by ca regivers to
respond if they fail to do so on their own, but we suggest that
this is u nlikely to be the primary way that they learn about obli-
gation in conversation. Instead children pick up on others
expectations of a response within many daily interactions.
Gradually, children begin to recognize the consequences for oth-
ers feelings of not responding to them.
Tomasellos second step involves conformity, which he sees as
a requirem ent for membership in a cultural group. He suggests
that individuals feel social pressure as obligation, but we are not
convinced that this can be a complete explanation for moral obli-
gation. People sometimes feel a moral obligation to disobey the
cultures (and our parents) ways of doing things if they are
believed to be wrong and need to be changed. Tomasello does
not explain this. For him, children buy into cultural norms with-
out evaluating them and uphold such norms because of what oth-
ers will think about them. But this is just conformity. It does not
get us to right and wrong. Individuals may disagree with and
oppose such norms leading to change. Although conformity is
a dimension of human social life, Tomasellos approach is incom-
plete and leads to moral relativism. It cannot explain how the
Greta Thunbergs of every generation challenge the status quo so
early in their development.
We suggest that the second step Tomasello proposes beyond
individuals obligation to their collaborative partners is not just
one step. Instead, it is a gradual process of including more per-
spectives on the moral issue in question, beginning with those
in close relationships and extending to one s cultural group. But
this can be further extended to other groups and to other animals.
Tomasello proposes taking a social approa ch to explaining the
source of moral obligation, but there are three problems with his
argument. First, there is still an implicit separa tio n of emotions
and cognition. Second, the process he describes begins with individ-
uals who then cooperat e and so feel social pressur e as obligation, but
we dont alway s feel obligation as onerous. Third, there is insufficient
explanation of how, or why, obligation emerges so late in develop-
ment. Mutual enjoyment in intera c tion makes human communica-
tion possible and then language and forms of thinking based on
language. Caring and mutual affection are embedded in the structur e
of the human developmen tal sy s tem. These str ong emotional bonds
are the seed for mutual respe ct, which is already ther e in communi-
ca tion, and develops increasingly into moral obligation.
Intuitive theories inform childrens
beliefs about intergroup obligation
Lisa Chalik
Yeshiva University, Stern College for Women, Department of Psychology,
New York, NY 10016.
[email protected] http://www.developingmindslab.com
doi:10.1017/S0140525X19002516, e65
20 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Abstract
In addition to emerging from childrens direct experiences with
collaborative partners and groups, childrens beliefs about obli-
gation also arise from a process of intuitive theory-building in
early childhood. On this account, it is possible for at least
some of childrens beliefs to emerge in the absence of specific
experiences where obligations are held among fellow members
of a group we.
In the target article, Tomasello argues that children initially view
obligations as holding among collaborative partners, then they
extend this knowledge to collaborative and cultural groups during
the preschool years. Overall, this is a convincing argument that
makes sense given the extensive literature on when and how chil-
dren develop an understanding of norms.
Yet, the argument that childrens sense of obligation is depen-
dent on their developing concept of we implies that it is child-
rens own direct experience in social groups that drives all of their
moral understanding. Clearly, childrens firsthand experiences
with the social groups in their environment influence a range of
social category-based processes, including obligation. Yet, this
argument overlooks the possibility that at least some of childrens
beliefs about groups exist as part of a more abstract framework of
how social groups function, beyond childrens own experiences.
For example, Tomasello reviews a great deal of work showing
that preschool-aged children show preferential treatment for
in-group over out-group members across a range of experimental
paradigms (Fehr et al. 2008; Misch et al. 2014;Over2018;Over
et al. 2016). These findings are not trivial and provide strong sup-
port for the suggestion that childrens beliefs about obligation are
embedded within their understanding of social groups. But they
do not disentangle childrens own affective biases toward the
groups they have encountered in the world from their broader
understanding of how social groups function in general.
Across development, children build intuitive theories
abstract, domain-specific, causal-explanatory frameworks of
how the world works (Wellman & Gelman 1992). In the social
world, childrens intuitive theories involve both (a) what social
group members are like, and (b) how social group members act
toward one another (Rhodes 2013). Importantly, these theories
are normative in nature they involve not just descriptions of
how group members act, but also prescriptions of how group
members are supposed to act (Haward et al. 2018; Prasada &
Dillingham 2009). In other words, childrens intuitive theories
establish the obligations by which group members are believed
to be bound . To that end, by the preschool years, children view
moral obligation as shaped by group membership: They think
that people are more likely to harm out-group members than
in-group members (Chalik & Rhodes 2014; 2018; Chalik et al.
2014; Rhodes 2012), and that people will protect in-group mem-
bers over out-group members from harm (Chalik & Rhodes
2018). Furthermore, as soon as children receive input to suggest
that a given behavior is morally relevant, they spontaneously
expect that behavior to play out according to group boundaries,
even if they have had no experience with the particular behavior
or groups in question (Chalik & Dunham 2020). Importantly, in
contrast to most of the in-group preferences documented in the
target article, these findings have all come from tests of childrens
third-person reasoning. In these third-party paradigms, childrens
judgments cannot be based on any personal biases that they hold
in favor of their own social groups, since children are not mem-
bers of the groups they are reasoning about. Thus, these findings
do not seem to rely on a sense of we”–rather, they depend on a
sense of they. This sense is abstract in nature, involving child-
rens beliefs about how groups are supposed to function in the
world, rather than whatever children have actually experienced
with the specific groups in their environment.
This possibility need not be in direct opposition to the one
presented by Tomasello. It is certainly possible that children
could build their understanding of obligation from both their
experiences in collaborative partnerships and their intuitive theo-
ries of how social groups function. Yet, if both of these proposals
are true, then an open question remains: When and how do chil-
dren incorporate their specific experiences into their more
abstract expectations of the world? The relation between child-
rens person al biases, as documented in first-person work, and
their abstract expectations of the world, as documented in third-
person work, remains largely unexplored, and will be an impor-
tant area for future research.
An additional issue raised by the intuitive theories account
regards the time-course of childrens developing understanding of
obligation. Tomasello reviews a great deal of work suggesting that
it is only after age 3 that children have a true sense of we. Yet,
the strong conclusion that children do not incorporate social
groups into their beliefs about moral obligation until this age is pre-
mature. If children hold an intuitive theory by which social groups
mark moral obligation, and notions of obligation are thus embed-
ded in representations of social groups, then children may begin to
develop these beliefs as soon as they start to recognize that social
distinctions exist in the world. A great deal of work now shows
that infants are sensitive to social groupings within the first year
of life (Bar-Haim et al. 2006; Kinzler et al. 2007; Quinn et al.
2002), and that toddlers can represent novel social groups, given
the right input (Diesendruck & Deblinger-Tangi 2014;Rhodes
et al. 2018). Furthermore, infants and toddlers do appear to have
different expectations about how people will interact with one
another, depending on group membership (Bian et al. 2018;Jin
& Baillargeon 2017;Tingetal.2019). This evidence is somewhat
limited, and there is undoubtedly much about childrensunder-
standing of obligation that continues to develop beyond age 3;
still, to some extent, it seems likely that children begin to hold
these concepts within the first three years of life.
Thus, the argument that childrens beliefs about oblig ation
arise from their experiences in collaborative partnerships and
groups is a strong one. Yet, it is incomplete without also consid-
ering the intuitive theories of social groups that children hold
regardless of their direct experiences, as well as the social group-
based judgments made by infants and toddlers.
Who are we and why are we
cooperating? Insights from
social psychology
Margaret S. Clark, Brian D. Earp
and Molly J. Crockett
Department of Psychology, Yale University, New Haven, CT 06520-8306.
Commentary/Tomasello: The Moral Psychology of Obligation 21
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
https://clarkrelationshiplab.yale.edu/people/margaret-clark
[email protected] https://oxford.academia.edu/BrianDEarp
molly.cr[email protected] http://www.crockettlab.org
doi:10.1017/S0140525X19002528, e66
Abstract
Tomasello argues in the target article that a sense of moral obli-
gation emerges from the creation of a collaborative we moti-
vating us to fulfill our cooperative duties. We suggest that we
takes many forms, entailing different obligations, depending
on the type (and underlying functions) of the relationship(s)
in question. We sketch a framework of such types, functions,
and obligations to guide future research in our commentary.
Drawing on developmental, comparative, and philosophical per-
spectives, Tomasello gives an account of moral obligation,
which he argues has received almost total neglect from psychol-
ogists. We agree with Tomasello that a sense of obligation arises
from cooperative agreements between humans, often functioning
as a powerful stick to prevent behavior that would lead to ones
own guilt or partner resentment. In fact, psychologists focusing
on dyadic and group behavior have long discussed such means
of prioritizing we over me in human societies: Kelleys
(1982) discussion of transformations-of-motivation from individ-
ual to shared concerns is a key example. The importance of coop-
erative norms and the risk of resentment and guilt implied by
breaking them also have been emphasized by researchers such
as Walster et al. (1978) who traced shifts from me to we
and identified resultant obligations as part of their equity theory.
Others have note d that moral judgments of the self and other are
caused by meeting or failing to meet cooperative expectations, the
nature of which often vary by relational context (e.g., Bloom 2011;
Clark & Boothby 2013; Rai & Fiske 2011).
Different relationship types have been distinguished in terms
of the adaptive functions they serve (Bugental 2000; Clark &
Mills 1979, 2012; Fiske 1992); the demands people place on coop-
erative partners depend on the origins and nature of their inter-
dependence (Bugental 2000; Clark & Mills 1979). We suggest
that taking into account who we are (in Tomasellos sense), as
well as why and how we are cooperating based on the func-
tions normatively served within our relations hip(s), will be crucial
for making progress in the social psychology of moral obligation.
Consider Wendy, who could easily provide a free hot meal to a
hungry young child named Peter, but neglects to do so. Has she
breached a moral obligation? It depen ds on the nature of the rela-
tionship between them. If Wendy is Peters mother, the answer is
probably yes (barr ing unusual circumstances). If Wendy is the
unrelated owner of a local restaurant, the answer is probably
no. Or consider John, who fails to pay his driver, Susan, for a
ride to the airport. If Susan is his taxi driver, he likely has
breached an obligation. If Susan is his sister or spouse, however,
he likely has not.
These examples highlight a difference between two relation-
ship types described in the literature: communal and exchange
(Clark & Mills 1979, 2012; see also Fiske 1992). Communal rela-
tionships are often exemplified by friends, family, and romantic
partners. In these relationships, people (normatively) assume a
special responsibility for one anothers welfare. They track each
others needs and desires (Clark et al. 1989), note the responsive-
ness of the other to their own needs (Clark et al. 1998
), and offer
non-contingent support as necessary to promote partner welfare
(Clark et al. 1987). Failure to offer such support reduces liking,
elicits hurt feelings (Clark & Mills 1979; Lemay et al. 2010),
and, we expect, triggers negative moral judgments (e.g., resentment).
By contrast, failure to directly compensate the other for needs-
responsive support in a communal relat ionship typically does not
cause such negative responses (as with John/Susan above).
Compare this to exchange relationships, often exemplified by
casual acquaintances or customers/sellers. In these relationships,
needs typically are not tracked (unless for purposes of selling or
exchanging), but the others contributions to joint tasks are
tracked (Clark et al. 1989; Clark 1984). Goods and services are
(normatively) provided on a contingent basis, and costly help is
generally not offered in non-emergency situations (Clark et al.
1987). Here, repaying debts and willingness to accept payments
leads to enhanced liking (Clark & Mills 1979) and does not elicit
negative judgments (McGraw & Tetlock 2005), whereas failure to
pay likely would be judged as morally objectionable (and refusal
to accept payment would seem strange and uncomfortable, if
not immoral ). The degree of perceived wrongfulness of an action
likewise depends on relational context (Simpson & Laham 2015;
Simpson et al. 2016; Tepe & Adymi-Karakulak 2018).
Communal and exchange relationships serve different func-
tions. Bugental (2000) proposed some overlapping functions
and added others as shown in Table 1. She ties each one to a spe-
cific adaptive goal or recurrent coordination problem faced by our
species.
Everyday relationships serve one or more of these functions to
varying degrees in different contexts. For example, a parent-infant
relationship normatively serves the attachment and hierarchy
functions across almost every context, but not the mating, reci-
procity, or coalition functions. Teammates are expected to serve
the coalition function, with a captain also serving the hierarchy
function, but in most societies the captain normatively does not
serve the mating, attachment, or reciprocity functions with
other team members.
Feelings of moral obligation (and judgments of blame for fail-
ing to uphold such obligations) often will be specific to the func-
tions that are central to the relationship at hand. So, a parent
would be heavily blamed (and would likely feel guilt) for failing
to serve the attachment function with their infant, but a captain
would not be so blamed (nor would likely feel guilt) for failing
to serve this function with a teammate, and so forth.
Two final points regarding the importance of asking who we
are. Tomasello focuses on we relations that are voluntarily
entered into by individuals who regard each other as relevantly
equal in terms of obligations, rights, and power; but the
parent-infant example highlights that at least some relationships
are unequal in these respects and may be non-voluntarily entered
into. Indeed, some we relations are imposed on people by the
situations in which they find themselves, some of which may be
functional for one party to the relationship but not the other
(see Kelley et al. 2003).
Second, Tomasello focuses on negative judgments resulting
from obligation-failures (the sticks). It will be fruitful to consider
the personal and interpersonal rewards to be gained by
obligation-fulfillment (the carrots) as well. Previous work suggests
that serving relationship functions in ways that are desired and
which exceed normative expectations will disrupt smooth, habit-
ual interdependent routines and will likely elicit positive emotions
(Berscheid & Ammazalorso 2001). Might moral praiseworthiness
judgments be similarly elicited?
22 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
To summarize, the varied nature of relational contexts and
functions shape moral judgments (Bloom 2011; Clark &
Boothby 2013; Haidt & Baron 1996; Rai & Fiske 2011), as well
as many other psychological phenomena (Reis 2008; Clark et al.
2017). Future work should consider who we are, taking into
account (1) the different functional and normative bases of differ-
ent relationship types, (2) both voluntary and non-voluntary
forms of interdependence, and (3) both positive and negative
moral judgments.
Integrating perspectives: How the
development of second-personal
competence lays the foundation for a
second-personal morality
John Corbit and Chris Moore
Department of Psychology and Neuroscience, Dalhousie University Life
Sciences Centre, Dalhousie University, Halifax, Nova Scotia B3H 4R2.
https://esdldalhousie.wixsite.com/esdl
doi:10.1017/S0140525X1900236X, e67
Abstract
The integration of first-, second-, and third-personal informa-
tion within joint intentional collaboration provides the founda-
tion for broad-based second-personal morality. We offer two
additions to this framework: a description of the developmental
process through which second-personal competence emerges
from early triadic interactions, and empirical evidence that col-
laboration with a concrete goal may provide an essential focal
point for this integrative process.
As Tomasello highlights in the target article, a key distinguishing
feature of human collaboration is the ability to form a second-
personal agent we, which regulates I and you in our com-
mitments towards achieving a joint goal. Collaboration character-
ized by second-personal agency is the foundation for the
development of a broad-based second-personal morality of
fairness and mutual respect. Further, through engaging in joint
intentional collaborative interactions, children come to under-
stand the self-other equivalen ce of I and you, thereby provid-
ing the foundation for individuals to relate to each other as equals.
Collaboration structured by second-personal agency appears to be
unique to humans, and the apprehension of perspectival equiva-
lence involved in this form of social understanding may well
explain why humans also uniquely show a commitment to treat-
ing collaborators fairly (Tomasello et al. 2005).
We have two goals in this commentary on the target article. First,
we intend to apply a developmental account of second-personal
agency focused on the role of triadic interactions (Moore &
Barresi 2017) to complement Tomasellos developmental account
of second-personal morality. Second, we highlight recent findings
that uncover the social contextual factors within joint intentional
collabora tion that activa te second-personal mor al concerns.
Whereas Tomasello argues for a fundamental role of joint
intentional collaboration, his account is relatively silent on how a
joint intentional schema comes about developmentally. Following
Moore and Barresi (2017; see also Barresi & Moore 1996), we pro-
pose that it is through the triadic interactions arising in the second
half of the first year that children gain the social experience neces-
sary to form the joint intentional schemas that Tomasello argues
are essential for second-personal morality. Triadic interactions
contain second-person information of various forms (see Moore
& Barresi 2017), but we suggest that it is through experiencing tri-
adic interactions whereby infants and interactive partners share
intentional orientations to objects and states of affairs that infants
are able to coordinate their own first-person intentional orientation
with their third-person perspective on the intentional orientation
of their partner (Moore & Barresi 2017). It is this experience of
shared intentionality within triadic interactions that allows children
to form a joint intentional schema. The ability to form a joint
intentional schema allows children to engage in the type of dual-
level collaboration wherein, as Tomasello argues, children come
to recognize the self-other equivalence from which a second-
person morality develops (Tomasello 2019).
A central argument in Tomasellos target article account is that
a sense of fairness develops through joint intentional collaboration.
This preference for fairness emerges through the formation of a
joint-agentive we, which is embodied by mutual action towards
a common goal. Within this form of dual-level collaboration, chil-
dren come to recognize self-other equivalence with their collabo-
rative partners. To date, much of the evidence that collaboration
increases childrens concern for fairness has come in the context
of collaborating to earn resources (Corbit et al. 2017; Hamann
et al. 2011; Warneken et al. 2011). However, when children collab-
orate to earn resources, there are several social contextual factors
that may activate fairness concerns; working to earn resources,
working to achieve a common goal, and enjoying a positive social
exchange. Thus, although Tomasello convincingly argues for the
importance of joint intentional collaboration in the target article,
parsing the influence of these factors will provide a better under-
standing of the psychological processes through which joint inten-
tional collaboration fosters fairness concerns.
In order to systematically investigate the influenc e of each of
these factors, Corbit ( 2019) assessed childrens(35 years old)
sharing before and after engaging in three collaborative contexts:
achieving a shared goal of earning resources, achieving a shared
goal independent of resources, and playing a social game.
Children increased sharing to collaborators with whom they
had accomplished a shared concrete goal, independently of
Table 1. (Clark et al.) Relationship functions, adapted from Bugental (2000).
Function Adaptive Goal/Coordination Problem to be Solved
Mating Finding and maintaining sexual partners; ultimately,
producing and ensuring the survival of offspring
Attachment Ensuring that a persons well-being is secure, without
strings attached to the giving or receiving of support;
maintaining safety; encouraging learning
Reciprocity Coordinating cooperative behavior between people with
similar (or equal) status, power, or responsibility
Hierarchy Coordinating cooperative behavior between people with
different (unequal) status, power, or responsibility
Coalition Forming and maintaining a group identity with
(potentially unrelated) others working toward common
goals
Commentary/Tomasello: The Moral Psychology of Obligation 23
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
whether the resources they shared were earned together or
obtained outside of the collaborative context. Importantly, sharing
increased only when children collaborated towards a concrete
goal, and not when the goal of their collaborative interaction
was to play a social game. An important question that emerges
from these findings is why might a concrete goal increase sharing,
whereas a primarily social goal does not?
Joint intentional collaboration towards a concrete goal may
serve a unique role in fostering a second-personal moral obliga-
tion. When a shared goal is to play a social game there is less
need for mutual (second-personal) regulation of the role for I
and you. This is because the goal of playing a social game can
be accomplished in a myriad of ways; so as long as partners remain
engaged, their social goal will be achieved. When there is a con-
crete goal, and we are dependent on one another to achieve
that goal, then I must regulate you (and vice versa), guided
by the shared intention we have. Indeed, when children collab-
orate towards a concrete goal, over repeated iterations they are able
to form role ideals that structure the way each collaborator must
fulfill their role towards achieving the joint goal. If the goal that
we have is to engage socially, then the role that you and I
play is secondary to that of the second-personal agentive we.
An obligation to treat collaborators fairly necessitates that
you and I are recognized as equivalent, yet distinct, agents
currently engaged in shared intentionality. Fairness is intrinsically
a relative process where I compare my stake to yours, and we as
equivalent agents can agree on a mutually satisfactory outcome.
We propose that in collaboration where the role I and you
must be mutually regulated by we in order to achieve a shared
concrete goal, the resulting commitment to mutually satisfactory
(fair) outcomes will be greater than when we is the focal point
of an interaction and the individual roles you and I play are
secondary. Thus, a shared concrete goal may provide the focal
point within joint intentional collaboration to facilitate the inte-
gration of first-, second-, and third-personal information provid-
ing a foundation for a broad-based second-personal morality.
Psychological consequences of the
normativity of moral obligation
Stephen Darwall
Department of Philosophy, Yale University, New Haven, CT 06520-8306.
stephen.darw[email protected]
https://campuspress.yale.edu/stephendarwall/
doi:10.1017/S0140525X19002437, e68
Abstract
An adequate moral psychology of obligation must bear in mind
that although the sense of obligation is psychological, wha t it
is a sense of, moral obliga tion itself, is not. It is irreducibly norma-
tive. I argue, therefore, that the we whose demands the sense of
obligation presupposes must be an ideal ra ther than an actual we.
Perhaps unsurprisingly, I broadly agree with Tomasellos target
article. I am a moral philosopher, however, not a psychologist.
Still, even if moral philosophy is an a priori discipline at the
foundational level where I tend to work, it cannot avoid giving
some hostages to psychological fortune. And mine does so in
spades, since I argue that central aspects of deontic morality
obligation, right, wrong, and so forth are conceptually related
to the psychological states P. F. Strawson called reactive attitudes
through which we hold people morally accountable (Darwall
2006; 2013b; 2013c; Strawson 1968). So, it has been enormously
exciting, and something of a relief, to find confirmation in
Tomasellos work for the second-personal psychology of mutual
accountability.
Psychologists tend to identify prosocial motivation with
sympathetic concern and the desire to benefit. As Tomasello
shows, however, what is essential to distinctively human forms
of cooperation is not a desire for others goods, but a deontic
motivation: a sense of obligation, including the desire to treat
others fairly and with respect. This is a motive of right rather
than good. It is conceptually related to what can be warrantedly
demanded of us. The very idea of moral obligation, I argue, is
the concept of what we can justifiably be held accountable for
doing, what it would be blameworthy to fail to do without excuse
(Darwall 2006; 2013b; 2013c).
Although the sense of obligation is psychological, what it is a
sense of is decidedly not, any more than mathematic intuition,
clearly a psychological phenomenon, concerns something psycho-
logical. The object of the latter is an a priori mathematical struc-
ture, and that of the former is an essentially normative one. This
fundamental fact has signi ficant consequences that need to be
borne in mind.
Tomasello distinguishes two different stages at which the sense
of obligation enters, both ontogenetically and phylogenetically.
Whether in collaborative play in early childhood or the obligate
collaborative foraging of our hunter-gatherer ancestors, an initial
stage involves a sense of obligation to individual partners as hav-
ing equal claims to the collaborative benefits and to respect as an
equal partner. A second stage involves wider cooperation within a
cultural group and a sense of obligation, less to particular individ-
uals, than objectively or period.
The psychological, as well as philosophical, engine driving the
sense of obligation in both cases, for Tomasello, is that joint under-
takings create a we with the standing to make demands of collab-
orating parties. When individuals cooperate voluntarily, their we
can make demands of each that ratifies claims the other has on
them as an equal partner, underwriting the parties sense of obliga-
tions to one another. When the cooperative scheme is more diffuse
and less voluntary, as with a cultural group, the wes demands are
not on behalf of individuals. The resulting sense of obligation is not
to anyone individually. They are on behalf of shared cultural values
that inform a sense of
objective obligation.
Now, as we noted, obligation is a normative, rather than a psy-
chological (or sociological) phenomenon. It follows that any
wes expectations or demands can generate obligations only if
they are justified demands that it would be blameworthy to ignore
or flout. It is important to see, moreover, that being culpable can-
not be understood in terms of what any actual we, whether vol-
untary or implicit, actually blames on pain of robbing obligation
of its normativity. What is blameworthy is what there is justifica-
tion to blame. I argue, therefore, that blame involves a standpoint
of a presupposed moral community of second-personally compe-
tent persons that is, moral agents or subjects, as such (Darwall
2006; 2013b; 2013c). It presupposes an ideal we.
No de facto group can create obligations by default. Individuals
become obligated to one another through agreements only because
24 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
of a background requirement on all moral agents to keep agree-
ments (other things being equal). We can become obligated to
one another through agreements only if it would be blameworthy
to violate them without excuse, where this consists in there being
justification for demands (and blame for violators) from a presup-
posed we of any (second-personally competent) person. The
inescapable point is that both second-personal morality and
“‘objective morality, as Tomasello calls them, presuppose moral-
ity in the intrinsically normative sense. They presuppose what we
might call objective morality without the scare quotes.
Here are two reflections of this fact. First, voluntarily agreeing
to something can obligate one only if a would-be partners forcing
you to do as they wish without your agreement would be wrong
and would wrong you. This background moral fact is presup-
posed. The wrongness of forced cooperation cannot completely
derive from the demands of any de facto group, obviously not
from a not-yet-constituted group, and not from any more encom-
passing de facto group, either.
Second, Tomasello notes experimental evidence that young
children tend to equalize the benefits of collaboration. It seems
implausible that they generally agree to this in advance or
write it into the contract constituting their we. Much more
likely is that there is a moral presumption of equal treatment
that is presupposed in the phenomenon of cooperation itself
(Darwall 2006). Tomasello hypothesizes self-other equivalence
and that the children are equal causal forces. But why suppose
that this is generally true de facto? The relevant equivalence is
irreducibly normative and moral, not empirical. In the relevant
sense, it holds even if (say, because one is ambidextrous and the
other is not), one is actually capable of playing both roles and
the other is not, or if one contributes more than the other in a
strictly causal sense.
Obligation at zero acquaintance
David Dunning
a
, Detlef Fetchenhauer
b
and Thomas Schlösser
b
a
Department of Psychology, University of Michigan, Ann Arbor, MI 48109 and
b
Institute for Sociology and Social Psychology, University at Cologne, 50931
Köln, Germany.
https://lsa.umich.edu/psych/people/faculty/ddunning.html
https://www.iss-wiso.uni-koeln.de/en/institute/staff/f/prof-dr-detlef-
fetchenhauer/
https://www.iss-wiso.uni-koeln.de/de/institut/personen/s/pd-dr-thomas-
schloesser/
doi:10.1017/S0140525X19002498, e69
Abstract
Social obligation begins far before people establish explicit coop-
erative relationships. Research on trust suggests that people feel
obligated to trust other people even at zero acquaintance, thus
trusting complete strangers even though they privately expect
to be exploited. Such obligations promote mutually beneficial
behavior among strangers and likely help people build goodwill
needed for more long-lasting relationships.
We resonate with Tomasellos observation that much of human
cooperation is driven by something akin to obligation. Pro-social
behavior is not so much an act of giving as it is of giving in”–
to social rules, roles, and duties (see Cain et al. 2014).
We not only find much agreement, we suggest that the scope
of his analysis applies far wider than Tomasello asserts. He pro-
poses that other-directed obligations arise when people enter
explicit collaborative activities with shared goals and joint
intentions.
We, however, would argue that obligation governs human
behavior much sooner than that. For communities to thrive and
develop, their members must honor certain rules and oblig ations
no matter how anonymous, transient, or minimal their supposed
relationships might be (Henrich et al. 2010).
Work in our labs on interpersonal trust directly demonstrates
the obligatory nature of pro-social behavior even at zero acquain-
tance (for reviews, see Dunning et al. 2019; Fetchenhauer et al.
2017). In laboratory trust games, we give participants $5 and
tell them they can either keep the money or hand it over to a com-
plete strang er whom they will never meet and who will never meet
them. Importantly, if they hand over the money, we will inflate it
to $20 and give the stranger their own choice. They can keep the
$20 or give $10 back to the participant. Such a choice represents
the core decision at the heart of many definitions of trust: People
must dec ide whether to open themselves to potential exploitation
by another person in order to produce a chance of personal ben-
efit (Rousseau et al. 1998).
The choices that participants make contradict a strict account
of neoclassical economics. Although participants on average think
there is only a 40% to 50% chance the stranger will hand money
back, clear majorities decide to trust that stranger (Fetchenhauer
& Dunning 2009). Pointedly, total strangers trust one another in
one-off anonymous exchanges even though many expect their
trust to be exploited and their welfare to suffer (see also Berg
et al. 1995). They gamble on the sociality of the stranger even
though they would rarely make the same bet if gambling instead
on a lottery wheel (Fetchenhauer & Dunning 2012). To an econ-
omist, the source of risk should not matter. However, to our par-
ticipants, it very much does.
Our research converges toward an explanation of this high rate
of trust that, if not the same as Tomasellos, certainly rhymes with
it. Many indicators point to social obligation as the source of this
decision. Participants on average report that trusting a stranger is
more something they should do rather than something they want
to do (Dunning et al. 2014).
More important, the emotions that people attach to trust fol-
low the logic of social rules and obligations. The prospect of
breaking a social obligation produces high levels of anxiety and
guilt (Higgins 1987). In our games, those who feel more anxious,
guilty, and remorseful about distrusting the other person than
they do about risking their money are the ones who trust the
most and these emotions predict trust beyond any economic
factor (Dunning et al. 2014; Schlösser et al. 2016).
Further work suggests the specific obligation that participants
feel they must honor, again one that is compatible with
Tomasellos account. Participants trust because they feel they
must respect the character of the other person (see Dunning
et al. 2016). To distrust the other person would be to call that per-
sons integrity into question. People express intense anxiety at the
prospect of doing so (Schlösser et al. 2015).
In addition, anecdotally, participants express that they choose
to trust not out of expectation but rather out of hope and faith
Commentary/Tomasello: The Moral Psychology of Obligation 25
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
(Dunning et al. 2012). When asked, our participants explain their
trustfulness by noting, I just want to live in a world where people
trust each other. Thus, they appear to take a we perspective, as
Tomasello would put it, even at zero acquaintance. And as we >
me, they feel obligated to trust even if from a me perspective
this might be irrational.
In retrospect, the adaptive value of this obligation to trust at
zero acquaintance is clear. First, it allows strangers, not only
those already in collaborative relationships, to benefit from the
behavior of others (Henrich et al. 2010). We hand over our credit
cards to complete strangers in restaurants. We purchase that trin-
ket on eBay and assume it will show up in the mail. We procure
our daily calories by going to stores run by people we never meet.
Perhaps another way to put it is that we are embedded in crucial
webs of implicit and fleeting collaborative relations with many of
the strangers we encounter every day.
In addition, obligations to trust and respect each other from
the start helps people to build the mutual goodwill needed for
more intense and complex relationships involving valuable shared
goals, joine d intentions, and smooth cooperation (Lawler 2001).
Yet, what is largely missing in Tomasellos article is any refer-
ence to the delicate nature of a we > me perspective. In our evo-
lutionary past, there have always been temptations to act selfishly.
It seems plausible that humans have developed all kinds of mon-
itoring systems to protect them from exploitation by other group
members (Cosmides et al. 2010). Thus, the observation that our
participants so cynically underestimate others trustworthiness
might be one such device to avoid being naïve and gullible.
Finally, being skeptical about others trustworthiness, but still
feeling an obligation to trust behaviorally, turns out to be a bene-
ficial strategy, at least in our laboratories. The strangers who
receive the $20 seem to respond to an obligation as well.
Although they are expected to return money only about half of
the time, they do so at a rate of roughly 80% (Fetchenhauer &
Dunning 2009). As such, trust at zero acquaintance may be
more an obligation than a preference, but it is one rewarded
handsomely.
The divided we and
multiple obligations
Bradley Franks and Andrew Stewart
Department of Psychological and Behavioural Science, London School of
Economics and Political Science, London WC2A 2AE United Kingdom.
b.franks@lse.ac.uk http://www.lse.ac.uk/PBS/People/Professor-Bradley-Franks
a.stewart1@lse.ac.uk http://www.lse.ac.uk/PBS/People/Andy-Stewart
doi:10.1017/S0140525X19002553, e70
Abstract
Tomasellos account of the origins and nature of moral obliga-
tion rightly emphasises the key roles of social relations and a
cooperative sense of we. However, we suggest that it overlooks
the complexity of those social relations and the resulting preva-
lence of a divided we in moral social groups. We argue that the
social identity dynamics that arise can lead to competing obliga-
tions in a single group, and this has implications for the evolu-
tion of obligation.
We welcome Tomasellos persuasive account of the evolutionary
and developmental origins of moral obligation as a bipolar atti-
tude towards moral decisions. Tomasello suggests that the bind-
ing quality of obligation generates a sense of a moral we as a
kind of cooperative identity (sect. 2.1.1, para. 1). We argue
that, while Tomasellos account of the origins of obligation to cul-
tural group norms is correct in its outline, it overlooks signi ficant
aspects of the internal dynamics of how obligation and identity
functions in cultural groups. We argue that the we is frequently
divided so that the resulting moral obligations are multiple and
sometimes contradictory. As such, moral obligation appears less
bipolar and more multipolar, with its judgments looking less uni-
directional than Tomasello assumes.
This moral we is an important claim that links Tomasellos
account with work on social identity and morality (e.g., Aquino &
Reed 2002). For us, Tomasellos picture (and the work on social
identity of morality) offers only a partial account, since they over-
look the possibility of a divided we. Namely, if a cultural group
holds multiple moral values, those different values can drive dif-
ferent oblig ations for a single decision. For example, Kim and Jo
are both Christians. Sam, a fellow Christian in their community,
was caught stealing from both Kim and Jo. In response, Kim
advocates punishment, while Jo advocates forgiveness both sup-
ported by community norms. Sam breaks the wider communitys
obligations for selfish reasons, but each of Kims and Jos
responses seems to the other to fail to meet significant obligations
within the Christian communitys norms. However, each is
emphasising different but equally important moral motivations.
This kind of phenomenon is echoed in moral ambivalence in
other religious, political, and ideological groups. It can be
explained straightforwardly by a social identity approach, in
which the content and context of specific identities affects indi-
viduals thoughts and actions. Research by Van Tongeren et al.
al. (2012; 2016) supports this notion as they have shown how reli-
gious individuals judgments can be shaped by differing virtues
valued within the same identity group. Our ongoi ng research
indicates that differing values within the same social identity
can lead to diverging and ostensibly contradictory moral decisions
(Stewart 2016; Stewart et al. forthcoming 2019). Using variations
on the trolley dilemma (Foot 1967; Thomson 1985), we show how
the content of a single identity can interact with different contexts
to lead to contrasting moral obligations and equally contrasting
moral decisions. This understanding adds nuances that are not
accounted for in Tomasellos explanation of excuses, justifica-
tions, or apologies, since multiple obligations can create multiple
reasonable responses within a social group.
This quality is not rare in morality. The ability to support
apparent internal contradictions seems to be a cornerstone of suc-
cessful moral, religious, and ideological systems (i.e., ones that
have been transmitted across many generations of cumulative cul-
tural evolution, and are implicated in cultural group selection: e.g.,
Richerson et al. 2016 ). Curry et al. (2019) and others have dem-
onstrated differing values of morality across and within cultural
groups, which can lead to differing decisions over the same
issue (for similar cases, see Graham et al. 2013; Greene 2013;
Legare & Gelman 2008; Hall et al. 2019). Extending Tomasellos
concept of the special social structure for bipolar obligations,
a complex moral system supports group cohesion. In complex cul-
tural systems, failing to meet one obligation in fact may be follow-
ing a competing obligation. Competing obligations may arise
from different values within the groups moral system that
apply to the decision in question but which are equally or more
26 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
justifiable in the context. As such, the concept of obligation, when
placed in concert with the social identity approach and its empha-
sis on context, offers a clearer understanding of how morality
functions within and between cultural groups.
Our approach also suggests that the evolutionary picture of the
origins of cultural-group obligation requires a role for a divided
we with its multiple obligations. Tomasellos account does not
provide this: He offers a view of separate moral hunter-gatherer
tribes who do not interact to any significant degree, akin to tribes
in Greenes Tragedy of Commonsense Morality (2013).
Distinctive moral systems bind together groups and generate
social selection pressures for good collaborators who can fulfil
obligations. The prevalent moral norms for each group are uni-
valent in directing behaviour in specific areas towards a single
moral judgment and behaviour. This description is a plausible
evolutionary starting point of cultural-group-based obligation.
However, other accounts of hunter- gatherer sociality suggest a
long evolutionary history of cross-tribe integration (e.g., Chapais
2008; 2011; Hill et al. 2011). In these accounts, groups combined
via pair bonding and mating, providing descendants with both the
genes of the integrated tribes as well as their cultural traditions.
This inter-tribe integration and interaction lays the foundations
for a divided we with multiple and possibly contradictory obli-
gations for members of the combined group. We do not claim
that such changes necessarily led to seamless and harmonious
integration of those different moral values. Rather, our suggestion
is that the recurrence of such situations helped create social selec-
tion pressures not only for good collaborators, but also for people
who are skilled navigators through complex morality and its
resulting multipolar obligations. In a world with a divided we,
these are the collaborators who could most skilfully cooperate
within a group holding divergent values from component tribes.
Moral systems are complex. Contradictory moral values are
held between and within groups, where they can prompt different
responses. The notion of obligation, when treated as monolithic,
underplays the complexity and context-dependence of such
responses. By treating obligation as a dynamic functi on, the vac-
illation between values provides a clearer understanding of how
morality and group identity are related both today and in our evo-
lutionary past.
Shared Intentionality, joint
commitment, and directed obligation
Margaret Gilbert
Department of Philosophy, University of California, Irvine, CA 92697-4555.
[email protected] http://www.faculty.uci.edu/profile.cfm?faculty_id=5365
doi:10.1017/S0140525X19002619, e71
Abstract
Tomasello frequently refers to joint commitment, but does not
fully characterize it. In earlier publications, I have offered a
detailed account of joint commitment, tying it to a sense that
the parties form a we, and arguing that it grounds directed
obligations and rights. Here I outline my understanding of
joint commitment and its normative impact.
In discussing his important empirical findings, Tomasello often
invokes joint commitment, as when he says that children at
around three years of age begin to appreciate the normative force
of joint commitments to collaborate (sect. 2.1.2.1, para. 3). He
ties it to a sense that one is part of a we and associates it with
obligations to the other parties and with the parties protesting
actions contrary to the commitment. While linking it to the mak-
ing of agreements and the like, he does not offer an account of joint
commitment itself. I have developed a detailed account of joint
commitment through a long list of publications (e.g., Gilbert
1989; 1996; 2006; 2014), associating it with a sense that one is
part of a we, with obligations to the other parties, and with the
parties rebuking one another for contrary action and demanding
conformity. Of the theorists of shared intentionality to whom
Tomasello briefly alludes in his preliminary discussion, I stand
apart in having invoked joint commitment. Indeed, I see it as the
core of human sociality (Gilbert 2003). Given his citations of my
work in his earlier writings (e.g., Tomasello 2014a; 2016a), it is rea-
sonable to assume that Tomasello means to invoke joint commit-
ment in the sense in which I intended it. This commentary
summarizes my understanding of joint commitment and its rela-
tion to directed obligation.
The general noti on of commitment at issue is normative rather
than psychological. As I understand it, one is normatively com-
mitted to act in some way if one has reason to act in that way,
in the sense that should one abstain from so acting, then, all
else being equal, one has acted in error. This is not necessarily
a moral error. Rather, one has not done what one ought to do,
in a central sense of ought that does not imply a specifically
moral basis for doing the thing in question. One way of becoming
normatively committed is by making a personal decision.
From a normative point of view, a decision does more than
create the possibility of acting in error. It excludes a number of
potentially countervailing factors from consideration. Among
these are the personal inclinations, desires, and self-interest of
the person in question that opposes the action decided upon. In
short, it has exclusionary normative force.
Whereas, with a personal decision, the decision maker com-
mits himself (or herself), in the basic case of a joint commitment,
the two or more people in question commit all of them as one.
This commitment creates a possibility of error in action for
each of the parties and has similar exclusionary properties. It
also introduces important relations between the parties, to be dis-
cussed below. (For discussion of basic versus non-basic cases, see,
e.g., Gilbert 2006, pp. 14041.) I focus on basic cases in what
follows.
What is required of each party to a joint commitment is that
each talk and act as would the representative of a single body
or person with a particular goal, belief, or other such psycholog-
ical attribute, depending on the case, aligning their respective
utterances and actions with those of the others as needed. This
behavior is required primarily in the context of interactions
among the parties themselves.
A joint commitment is formed once the following conditions
have been fulfilled: Each party has expressed to the other or others
his readiness for the joint commitment of them all in the way in
question, in conditions of common knowledge. That is, roughly, it
is out in the open with respect to the people in question that these
expressions have been made. At this point the joint commitment
has been established. (See Gilbert 2006 for some elaboration.)
Just as it takes two or more people to make a joint commit-
ment, it takes the same people to rescind it. Importantly, then,
Commentary/Tomasello: The Moral Psychology of Obligation 27
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
no one party has a unilateral power of rescission. The conditions
for rescinding a joint commitment parallel those for forming or
creating one: Each must express his readiness to accede to the ter-
mination of the commitment. For a relatively nuanced discussion
of how to be freed from a joint commitment, see Gilbert 2006,
pp. 14144.
One reason to suppose that in a variety of circumstances,
including the context of acting together, people think that a
joint commitment has been made is the fact that they take them-
selves to have the standing to rebuke one another for acting in
particular ways and to demand that they not act in those ways,
where neither morality nor the self-interest of either party is
clearly at issue (Gilbert 1990). It can be argued that those who
are jointly committed have the standing to issue demands for con-
formity and rebukes for non-conformity to the commitment by
virtue of their co-imposition of the commitment on the parties.
Further, it is hard to explain the standing to issue demands and
rebukes in any other way. For an extended discussion of these
two points, see Gilbert (2018b).
I have tightly connected the standing to demand and rebuke to
directed obligation: For one person to be obligated to another to
perform a certain action is for the latter to have the standing
to demand that action of the former. I distinguish directed obliga-
tion from another kind of so-called obligation moral requir ement
and note that I can be obligated to you to perform an action that I
am morally required not to do, as when two people agree together
to perform a dastardly deed. See, for instance, Gilbert (2018b).
Tomasello raises the question of the relation of joint commit-
ment thinking to moral thought, and makes several points that
accord with my position. There can be joint commitments on a
large scale to uphold as a body a particular moral code. In that
case, the parties will have obligations to one another to act accord-
ing to that code. Again, situations of joint commitment are likely
to provoke a variety of moral concerns. See Gilbert (2018a,
pp. 76164), for some discussion of the relation of joint commit-
ment to the moral concept of fairness.
Conflicting obligations in human
social life
Jacob B. Hirsh
a
, Garriy Shteynberg
b
and Michele J. Gelfand
c
a
Institute for Management & Innovation and Rotman School of Management,
University of Toronto, Toronto ON M5S3E6, Canada;
b
Department of
Psychology, University of Tennessee, Knoxville TN 37917; and
c
Department of
Psychology, University of Maryland, College Park, MD 20742.
[email protected] http://www.jacobhirsh.com
[email protected] http://www.garriyshteynberg.com
[email protected] http://www.michelegelfand.com
doi:10.1017/S0140525X19002425, e72
Abstract
Tomasello describes how the sense of moral obligation emerges
from a shared perspective with collaborative partners and
in-group members. Our commentary expands this framework
to accommodate multiple social identities, where the normative
standards associated with diverse group memberships can often
conflict with one another. Reconciling these conflicting obliga-
tions is argued to be a central part of human morality.
Tomasellos target article describes how the sense of moral obliga-
tion emerges from a shared perspective with collaborative part-
ners and in-group members. Once adopted, this shared
perspective motivates compliance with the normative expectations
of ones group, thereby facilitating social coordination and behav-
ioral regulation. Although we agree that adopting shared perspec-
tives with significant others plays a central role in human
motivation and cognition (Shteynberg 2015; 2018), there is a crit-
ical aspect of human morality that is not discussed in the target
article: the conflict of obligations. We argue that facing obliga-
tional conflicts is a key process by which humans become
moral agents, pursuing a moral code that transcends the demands
of any particular social role.
Tomasellos article focuses on relatively simple situations in
which a single group perspective (or we) serves to regulate
ones actions. In these contexts, there is a relatively straightfor-
ward motiv ation to comply with the normative expectations of
ones group. Violating these norms can threaten ones group
membership, while conforming to them helps to preserve rela-
tional ties (Cialdini & Goldstein 2004). As identification with
the group increases, so too is there a stronger motivational force
driving the desire for normative compliance (Terry et al. 1999).
In single-group contexts, human morality can thus be evaluated
with a single question: Is an individual conforming to or deviating
from the group norms?
Although social psychologists have traditionally studied identity
dynamics in the context of a single social group, there is a growing
recognition that each person can belong to many partially overlap-
ping groups at the same time (Bodenhausen 2010;Kang&
Bodenhausen 2015; Roccas & Brewer 2002). Critically, each one
of these group-bounded identities carries with it a unique set of
normative expectations for guiding behavior. While these norms
are occasionally in alignment with one another, they are also
prone to conflict. A lawyer may, for example, be expected to act
in a highly assertive and competitive manner at work based on
the norms of her office. When interacting with her family, however,
she may feel obliged to adopt a softer and more nurturing persona
in accordance with traditional gender norms. If these incompatible
normative standards become activated at the same time (e.g., at the
office holiday party), the result is an aversive state of behavioral
conflict and uncertainty (Hirsh & Kang 2016). In these cases, the
obligations that derive from ones various group-based identities
cannot all be enacted at once, as satisfying a moral duty in one
domain can undermine it in another.
Recognizing the complexity of human identity and social life
thus provides an important extension of Tomasellos framework
for the moral psychology of oblig ation. In particular, a given indi-
vidual will have not only one, but many distinct shared perspec-
tives that can be brought to bear on a given situation. The result is
a constant flux of felt obligations that wax and wane with the sali-
ence of ones various group identi ties. In light of this normative
diversity, human morality goes beyond the simple question of
whether or not to compl y with the felt obligations of ones
group, expanding to include the more complex question of
which obligations to prioritize in a given situation. Although
the easiest solution is often to ignore any moral obligations that
28 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
are not directly relevant to the current social context (Lerner &
Tetlock 1999), we are nonetheless often forced to reconcile
incompatible social demands. Indeed, the moral uncertainty
that accompanies ethical dilemmas, wherein two or more ethical
norms are in apparent conflict, has been argued to play a key role
in the engagement of moral reasoning processes (Hirsh et al.
2018; Rest 1986). Navigating the tensions between diverse group
obligations is thus a central aspect of human social life and a
core component of moral agency and personal identity
(Shteynberg 2012).
Different social environments also vary substantially in the
extent to which a groups n ormative expectations are clearly
defined and en forced (Gelfand et al. 2017). Cul tural contexts
that have been subject to a broader range of ecological and his-
torical threats tend to adopt stricter normative standards for
governing behavior, with stronger san ctions for those w ho devi-
ate from social expectati ons (Gel fan d et al. 2011). The result is a
tight culture, wherein individual freedom is sacrificed for the
sake of well-regul at ed grou p coordination. In con trast, cultural
contexts that have faced fewer threats tend to be more permissive
or lo os e, allowing a broader rang e of socially acceptable behav-
ioral opt ions at the exp ense of having less-predictable social
encounte rs. Given that tight cultures tend to be more socially
cohesive, people within them are likely to exp erienc e the feeli ng
of person al obligation to normative standards in a relatively
unambiguous manner, as described b y Tomasello. Cultural envi-
ronm ents with looser norms and more flexible ident ity struc-
tures, however, are more likely to afford conflicting
perspect ives and inconsistent normative standards. Moral
agency in such contexts is even more clearly rooted in an indi-
viduals attempts to harmonize competing expectations (e.g.,
through moral rea soning).
In summary, modern human life is far more complex than the
single-group contexts that defined our early human ancestors.
Advances in globalization, communication technology, and eco-
nomic development have all contributed to a social landscape
that features a diverse multiplicity of group-based perspectives
and normative expectations. In attempting to live up to ones
duty, a central challenge faced by any moral agent is to reconcile
the conflicting obligations that derive from adopting multiple
roles and identities. Attempts to integrate these conflicting
demands are fundamental to the emergence of personal moral
agency, and hence should not be overlooked in any account of
human morality. Accordingly, a key frontier of future res earch
is to understand the strategies that individuals use to negotiate
these conflicting obligations; how the strategies vary across indi-
viduals, situations, and cultures; and the consequences they
have for social coordination across multiple actors. Situating
Tomasellos framework within a broader social-ecological context
thus allows a more detailed description of moral obligation in
human life.
Personalizing the demands of reason
Charles Kalish
Society for Research in Child Development, Washington, DC 20006.
[email protected] http://corundum.education.wisc.edu
doi:10.1017/S0140525X19002541, e73
Abstract
Children come to joint action with a generalized sense of rea-
son, which carries normative implications, before personalizing
reasons. A general sense of ought precedes specific notions of
individual perspective.
Tomasellos target article addresses the developmental origins of
obligation in childrens participation in shared goals and joint
plans of action. However, shared intentionality and joint action
depend on the ability to construe behaviors as actions, as rational
and reasonable. Rationality is also at the heart of the origin story
of obligation. As noted in the target article, an obligated individ-
ual must be a rational agent with the capacities to make and reg-
ulate oneself by normative judgments about what attitudes are
warranted (Darwall 2013c, p.47). This idea of warranted attitudes
provides important conceptual resources for the construction of
obligation. Being warranted is already a kind of normative
relation.
From a very early age, infants make sense of behaviors using
something like a rational frame (Gergley & Csibra 2003).
Agents have reasons to do things. If the goal is to reach an object,
an agent has a reason to move toward that object. To do otherwise
is a mistake, a violation of some kind. By the time children can
talk, they justify and explain in terms of ration al action. Of course
the person seeking their dog will look where it is: it would be silly
to do otherwise (Bartsch & Wellman 1995). Indeed, childrens
appreciation of humor is a key marker of this perspective.
Nothing is funnier than to see an adult (intentionally) do some-
thing wrong. Talking into a shoe like it is a phone is nonsensical,
but only in relation to a rational, correct way to use a shoe.
Childrens early concept ions of rational action are more objec-
tive, depersonalized, non-representational than are adults.
Reasons are not qualities of individuals as much as they are fea-
tures of situations. Perner and Roessler (2010) described this as
a teleological perspective (see also Gergley & Csibra 2003;
Kalish 2005 on natural status). The dog-seeker has a reason
to look under the bed, because that is where the dog is. A more
sophisticated conception of action personalizes reasons. Actors
have reasons in their own lights, as they represent the world
to be. The person who does not know the dog is under the bed
has no reason to look there. The philosophical literature distin-
guishes justifying reasons used to evaluate actions from explan-
atory reasons used to causally account for actions. Young
children seem prone to take justifying reasons as explanatory.
This is often characterized as a form of egocentrism. If an act
makes sense from the childs point of view, it must make sense
for the actor as well.
At first blush, the hypothesis that childrens conception of
rational action moves from general (the reason) to second-party
(their reason) seems exactly contrary to Tomasellos account of
the dyadic then later generalization of obligation. However, the
kind of normative commitment involved in rational action is
not obligation. Indeed, it may be the personalization of reason
that establishes the dyadic context of obligation (and vice versa).
The big problem with childrens early egocentric construction of
rational action is conflict. Classically, the focus has been on conflict
between representation and reality (e.g., false belief). Conflict
between perspectives is equally challenging, although only certain
kinds of incompatibility actually conflict. People have different
goals, reasons to do different things. Even in a clear zero-sum
Commentary/Tomasello: The Moral Psychology of Obligation 29
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
situation say, two people in a boat desiring different destinations
(Rakoczy et al. 2007) there is no necessary incompatibility of per-
spective. One can think, I have a reason to go to X, and you have a
reason to go to Y. Only one goal will be satisfied, but that is com-
monplace: goals frequently go unfulfilled, plans are thwarted. That
you have a reason to go to Y is accidentally, empirically incompat-
ible with my reason to go to X. A deeper conceptual conflict arises
only after we have established a common goal, a joint intention. If
we have agreed, We will go to X together and you steer the boat
to Y, now there is a problem.
The problem of coordination underli es Tomasellos account of
the origin of obligation. Obligation is a cognitive mechanism to
establish, maintain, and enforce shared goals and action plans.
In this role, obligation provides a kind of answer to the question
of What went wrong? when coordination breaks down.
Especially in efforts to restore coordination, obligation focuses
attention on the mental processes involved in an others behavior.
Recognizing that someone is doing something wrong or silly
entails understanding warranted attitudes, but does not neces-
sarily involve understanding what causes wrong or silly behavior.
This is just an evaluation. Obligation is part of a causal story. To
understand someone as obligated is to understand them as
responsive to reasons in a certain way. Reasons have to cause
(or at least motivate) their behavior. That is why citing the obli-
gation is an effective way of restoring coordination. I remind
you of the reason, and expect you to adjust your behavior in
light of it.
It may be in contexts of shared intentionality that children
start to think about the causal processes involved in acting on rea-
sons. When coordinating with another, a child needs to track and
repair specific individual attributions of goals, and reasons. It is
where the observation, Sometimes people dont do what they
should turns to Why dont they? Participating in joint action
requires concern with maintaining shared perspective. The deper-
sonalized teleological or justifying understanding of reasoned
action (people do what makes sense) becomes enriched with a
personal causal/explanatory understanding.
Tomasellos target article has identified a critical nexus in
social cognitive development. The construction of a situational
and dyadic notion of obligation draws on an earlier general and
depersonalized notion of acting for a reason. In coming to
understand obligations, children are revising their understanding
of action and moving to a more fully representational theory of
mind. Understanding people as acting for reasons always involves
a tension between a general, justifying what makes sense form,
and an individual, explanatory what they think form. Obligation
in joint action turns out to be a critical meeting point of these two
forms both conceptually and developmentally.
Is that all there is? Or is chimpanzees
group hunt fair enough?
Angelica Kaufmann
Department of Philosophy, Faculty of Humanities, Bar-Ilan University,
Ramat-Gan, 5290002 Israel.
[email protected] https://biu.academia.edu/AngelicaKaufmann
doi:10.1017/S0140525X19002309, e74
Abstract
Tomasello claims that we lack convincing evidence that nonhu-
man animals manifest a sense of moral obligation (i.e., the con-
cept of fairness) in their group activities. The philosophical
analysis of distinctive evidence from ethology, namely group
hunting practices among chimpanzees, can help the author
appreciate the distinctive character of this behaviour as a display
of fairness put into practice.
Tomasello argues that in some groups of chimpanzees,
individu als hunt monkeys together in grou ps. But they do
not call their partners out for poor performance, or apologize
or m ake excuses or feel guilt y for their own poor perfor-
mance, or feel obligated to share the spoils in a fair manner
among participants (sect.2.1,para.1).Accordingtothe
author, a chimpanzees group hunting does not amount to a
display of moral behaviour in the form of fairness. Other pri-
matologists have arg ued dif ferently (Brosnan & de Waal 2003;
de Waal 2006a; Høgh-Olesen 2009). Mo st notably, Boes ch
(2005 , p. 629) described the complexity of this practice:
Like a team of soccer players, individuals react opportunisti-
cally to th e present situ ation while takin g into account the
shared goal of the team. Some players will rarely make a
goal, like defenders and goalies, but the success of the team
will critically depend upon their contribution. This is very
reminiscent to group hunting in chimpanzees where synchroni-
sation of different coordinated roles, role reversal, and perfor-
mance of less successful roles favour the realisation of the
joint goal.
The philosophical analysis of group hunting practices can help
Tomasello appreciate the distinctive character of this behaviour,
and to reconsider the claim that we lack convincing evidence
that nonhuman animals manifest a sense of moral obligation,
like fairness, in their group activities.
We know that these group hunting strate gies require a coali-
tion of up to four individuals: the driver, who forces the target
prey (normally a red c olobus monkey) into a specific direction
into the tree canopy; the bloc ker, who makes sure that the target
prey does not de-route from the d irection imposed by the driver;
the chaser, who attempts to chase the target prey from above;
and the ambusher, w ho is positioned at the end of the induced
trajectory and is ready to trap the targ et p rey. Crucial to the su c-
cess of the hunt is that chimpanzees shall effectively coordinate a
single hunt as long as each of the participants to the hunt
remains loyal to his role. Sub sequently, the spoils are distributed
taking into account the role covered during the hunting. As a
result, individuals who worked harder and exposed t hemsel ves
to higher risks get more than the others when it comes time
to be rewarded.
As Boesch and Boesch-Achermann (2000) explained, the
hunting behaviour is a learning process that starts around 810
years of age and that takes about 20 years of practice in order
to be mastered. Different roles in the hunt require different levels
of expertise and can be performed by more or less experienced
individuals. This practice is very demanding because it requires
(1) the capacity to understand the behaviour of another species,
that is, the red colobus monkeys, and (2) the capacity to coordi-
nate actions among individuals towards a common goal across
time. Along with the authors we can establish that the mecha-
nisms in group hunting is kept stable by (a) a mechanism for
30 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
individual recognition (that is, the mutual assignment of roles),
(b) temporary memory of actions in the recent past (that is, time-
delayed coordination of the actions), (c) attribution of value to
those actions (that is, acknowledgment of the roles), and (d) social
enforcement of those values (that is, fair distribution of the
spoils).
I shall explain the philosophical implications of the analysis of
this behaviour. Along with Tomasello, we can appeal to Bratmans
planning theory (2014) to explain that what is crucial for a sense
of obligation psychologically is indeed the capacity for shared
agency which Bratman has outlined in a number of core qualities
required for complex multi-agent and time-delayed action coordi-
nation. Differently from Tomasello, I argue that these correspond
to the features that, according to Boesch and Boesch-Achermann
(2000), keep the chimpanzees hunting stable. Bratman argued
that the capacity for temporally extended intentional agency
depends on the ability to (b) retain memory of actions in the
recent past. This supports the capacity for self-governance that
depends on the ability to (c) attribute values to the actions in
which the agents are engaged. The latter triggers (d) mutual
responsiveness to those actions in virtue of the values that are
attributed to them. Then, this results in (a) a mechanism for
mutual recognition that enables shared intentional activity
(Kaufmann 2015; 2017).
I elaborate on this a nd explain that, in ad dition, the mecha-
nism of g roup hunting might b e unde rpinned by a relatively sta-
ble nor mative or, we can even s ay, proto-institutional
component that may be applied to explain how far fairness
can extend among chimpanzees. I shall call this phenomenon
action-free perd urance, and I will suggest how the display of f air-
ness among chimpanzees, and presumably among other animal
species, is made possible.
If we think about what distinguishes a hunting team from,
say, a f ootball team, arguably this is what we shall call action-
free perdurance (of a state of affairs). Social entities, such as
football teams, with an institutional component exist prior
and subsequently to the online co ordination of shared actions.
Their existence is independent of the actual or online perfor-
mance of a shared action. Instead, for group hunting, it
seems that the normative asp ect exists only in an online
mode that is, during the actual performance of a shared
action. This is because the cognitive capacities that all ow
for conceptual thought and language may be requested for cre-
ating institutional reality, and for maintaining t he n ormative
power of institutions. Since language seems to facilitate the
establishment and the perdu rance of a state of affairs in the
absence of online coordination of shared ac tions, it follows
that creatures lacking conceptual capacities, presumably, lack
those for the creation of institutional facts as well.
Nevertheless, this different cognit ive equipment allows for
action-bound actsoffairnessasaconsequenceofhunting
practices.
Last, it is interesting to notice that, hunter-gatherer popula-
tions of humans in Paraguay and Venezuela carry on hunting
practices with analogous developmental paths to those of chim-
panzees, both in terms of the time necessary for learning and
of the age range during which individuals hunt more frequent ly
and more efficiently (Kaplan et al. 1985; Walker et al. 2002).
Further comparative analysis with chimpanzees group hunting
may even tell us about the continuity of shared agency in species
other than us.
The moral obligations of conflict
and resistance
Melanie Killen
a
and Audun Dahl
b
a
Department of Human Development and Quantitative Methodology, University
of Maryland, College Park, MD 20742 and
b
Psychology Department, University
of California, Santa Cruz, CA 95064.
[email protected] www.killenlab.umd.edu
[email protected] https://esil.ucsc.edu/people/audun-dahl/
doi:10.1017/S0140525X19002401, e75
Abstract
Morality has two key features: (1) moral judgments are not solely
determined by what your group thinks, and (2) moral judgments
are often applied to members of other groups as well as your
own group. Cooperative motives do not explain how young chil-
dren reject unfairness, and assert moral obligations, both inside
and outside their groups. Resistance and experience with con-
flicts, alongside cooperation, is key to the emergence and devel-
opment of moral obligation.
How do humans acquire moral obligation, a unique
species-specific ability that enables individuals to live in large
groups peacefully, create rules of justice, fairness, and rights,
and protect the interests of the minority? Tomasellos thought-
provoking answer, motivated by an evolutionary perspective,
starts with cooperation, through which identification with groups,
and the internalization of cultural norms, provides the basis for an
objective moral obligation. Tomasello proposes that individuals
live up to their moral obligations because they identify with
their social groups: I am obliged to conform and identify with
those around me or else I really and truly, objectively, will cease
to be who I am in the group (sect. 2.2.3, para. 3).
By rooting moral obligations in cooperation and group identi-
fication, however, Tomasellos account invites two challenges: (1)
How to explain that individuals, including young children, sepa-
rate group norms from moral norms, often sparking conflicts; and
(2) How to explain that individuals, including young children,
extend moral norms to members of other groups? Answers to
these questions will explain how individuals seek to rectify failures
of moral obligation to others that permeate human existence.
Concerns with others welfare, rights, and justice often conflict
with group norms or authority commands. These conflicts give
rise to civil rights movements, corrections to gendered and racial
discrimination, and intrapersonal dilemmas about whether to
obey an authority (Killen & Smetana 2015; Turiel & Dahl 2019).
The abundance of such conflicts have led philosophers and devel-
opmental psychologists to separate moral concerns from norms
imposed by authorities and groups (Sen 2009;Turiel2002). This
contrast is evident, for instance, when authority commands conflict
with moral obligations to protect others: a good soldier obeys
orders, but a good human being doesnt massacre the innocent
(Korsgaard 1996, p. 102; see Turiel & Dahl 2019).
On this view, morality has two key features: (1) moral judg-
ments are not solely determined by what your group thinks,
and (2) moral judgments are often applied to members of other
groups as well as your own group. Initially, some researchers
Commentary/Tomasello: The Moral Psychology of Obligation 31
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
proposed that young children confuse group norms and moral
concerns with rights, welfare, and justice (Kohlberg 1971; Piaget
1932). Over the past 40 years, however, researchers have shown
that children separate moral concerns with welfare, rights, and
justice from authority commands and group consensus by around
three years of age (Dahl & Killen 2018; Killen & Smetana 2015;
Turiel 2002). Based on this research, we contend that resistance
to and reflecting on social conflicts, alongside cooperation, is key
to the emergence and development of moral obligations.
Thus, while we grant that cooperation plays a fundamental role
in moral development, young children also disagree with parents,
peers, and siblings about which clothes they should wear, who
owns which toy, and whether it is okay to hit back (Dahl 2014;
Nucci & Weber 1995; Ross et al. 2014; Smetana et al. 2012;
Wainryb et al. 2005). The dynamics of young childrens resolu-
tions to peer conflict reveal that prosocial behaviors during con-
flict are related to peaceful post-conflict interactions, indicating
that cooperation often stems from interperson al conflict (Spivak
2016).
A further question that arises is how do children determine
which cultural norms are legitimate, and which norms perpetrate
negative social interactions with others? Cultures are notoriously
complex, emanating and disseminating messages that are contra-
dictory and inconsistent (Gelf and et al. 2016). Children evaluate
social norms, often rejecting normative expectations that could
harm others or deny deserved resources (Rizzo et al. 2018). In
fact, the existence of conflict between different types of obligation
demonstrates that moral norms are often distinct from group
norms (or there would be no conflict).
Tomasello proposes that children (and early humans) adhere
to an obligation to apply moral codes to the in-group prior to
the out-g roup, until at some point, when a universalization
based on the identification with all humans (not Martians)
takes place. In fact, young children endorse moral obligations
toward both in-group and out-group members. Conflicts with
in-group members reveal that interactions are not always cooper-
ative: Siblings have extensive conflicts over sharing toys and
refraining from the infliction of harm (Goulding & Friedman
2018), and same-gender peers have conflicts about whose turn
it is to play a game.
Conflict within the in-group may even appear prior to conflict
with the out-group, given the lack of exposure to other groups
early in development (exceptions include children from biracial
and bicultural families; see Gaither et al. 2014). Although some
moral transgressions toward in-group members are rated as
more serious, moral transgressions toward out-group members
are still judged as wrong (Rhodes & Chalik 2013; Mulvey
2016a). With age, children recognize that in-group preferences
are unfair (Rutland & Killen 2015).
No doubt, in-group preferences and outgroup distrust create
challenges for children (and adults) when considering inter-
individual treatment. Preference for the in-group occur s when
there is outgroup threat (Tajfel & Turner 1986). Without an obvi-
ous threat, though, children have a propensity to seek out other
children whether they are from the same group or a different
group (Nesdale 2004). Children from various racial and ethnic
backgrounds also reason that moral obligations apply to those
from different gender and ethnic groups (Killen 2007).
The developing ability to separate moral obligations from
group norms, and to apply moral obligations to both in- and out-
group members, provide the basis for addressing pressing societal
questions. From an early age, children recognize that non-
cooperative behavior is often necessary to achieve moral aims.
This leads them to rectify inequalities, resist unfair practices,
and challenge stereotypic expectations in situations involving
inter-individual treatment (Elenbaas 2019; Rizzo et al. 2018;
Rochat et al. 2014). Children understand the cost of resistance
to group norms, however, and are concerned about such conse-
quences as social exclusion (Mulvey 2016b; Rutland et al. 2015)
and ostracism (Song et al. 2015).
Balancing competing moral and group obligations begins at an
early age, sometimes collaborating and sometimes challenging
group norms. Yet these balancing acts continue to develop through
intra- and interpersonal as well as intra- and intergroup conflicts
across the lifespan, shaping the trajectory of human societies.
The sense of obligation in childrens
testimonial learning
Pearl Han Li , Annelise Pesch and Melissa A. Koenig
Institute of Child Development, University of Minnesota, Minneapolis, MN 55436.
http://www.cehd.umn.edu/icd/people/faculty/cpsy/koenig.html
doi:10.1017/S0140525X19002486, e76
Abstract
We extend Tomasellos discussion of childrens developing sense
of obligation to testimonial learning. First, we review a battery of
behaviors in testimonial exchanges that parallel those described
by Tomasello. Second, we explore the variable ways in which
children hold others accountable, suggestive that childrens eval-
uations of moral and epistemic responsibilities in joint collabo-
rative activities are distinct.
Tomasello argues that childrens developing sense of obligation
towards collaborative partners and in-group members develops
within joint collaborative activities. Although we agree that the
human sense of obligation is evident in collaborative activities,
we believe that certain aspects of Tomasellos discussion can be
extended to the case of testimonial learning. However, recent evi-
dence that children treat epistemic and moral responsibilities dis-
tinctly suggests that the behaviors children use to hold others
accountable may differ depending on the type of obligation or
commitment that has been broken.
In addition to Tomasello s argument that there is a sense of
obligation in moral cooperation, testimonial exchanges can also
allow speakers and listeners to make commitments to each
other, showcasing epistemic cooperation . In other words, learning
from testimony depends not only upon monitoring speakers for
signs of knowledge or competence (for a review, see Harris
et al. 2017), but also upon recognizing those with willingness to
cooperate and fulfill their commitments to tell the truth. In fact,
much philosophical research on the role of tru st in testimonial
learning has argued that when addressees believe what they are
told, take a speakers word for it and trust her for the truth
(Ross 1986), they recognize the speakers commitment to the
truth of what she says (Moran 2005), receive a unique kind of epi-
stemic warrant to rely on that speaker (Holton 1994) and can hold
32 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
the speaker epistemically responsible as a result (McMyler 2011).
In other words, when addressees believe something based on a
speakers authority, their trust is grounded in a mutual regard
between the speaker and the addressee, which is similar to
Tomasellos second-personal responsibility in joint collabora-
tion. Similar to Tomasellos view that breaches of obligations
can result in reactive attitudes (e.g., blame, protests), contempo-
rary epistemologists also argue that listeners who accept a speak-
ers claim acquire a suite of rights, including rights to hold
speakers accountable, rights of complaint, rights to demand an
apology, and rights to forgive (Gilbert 1992; Hinchman 2005;
McMyler 2011). Moreover, if addressees take someone at her
word, they are entitled to pass responsibility back to the speaker
when their belief is challenged, if they so choose (i.e., pass the
epistemic buck, Brandom 1994; Goldberg 2006).
Consistent with work in philosophy, a growing body of devel-
opmental research suggests that in testimonial exchanges that
involve forms of commitment, children engage in a battery of
behaviors that parallel those described by Tomasello in the
domain of action. Tomasello describes that the human sense of
obligation to collaborative partners manifest in (1) reactive atti-
tudes when the partner fails to play her role in a joint commit-
ment; (2) leave-taking behavior when breaking a commitment;
and (3) fairness and reciprocity among second-personal agents.
Similarly, when a speaker intentionally offers incorrect informa-
tion in direct testimonial exchanges, even infants detect, inter rupt,
and actively correct speakers who make mistakes either by mis-
naming common objects (Begus & Southgate 2012; Grassmann
& Tomasello 2010; Jaswal 2004; Koenig & Echols 2003;Pea
1982) or by presenting difficult or anomalous requests (e.g.,
Can you bring me the refrigerator?; Grosse et al. 2010; Shwe
& Markman 1997; Wellman et al. 2019). Not only can children
direct objections at deviant speakers, they also actively protest
against addressees who fail to fulfill the commands of a speaker
(Rakoczy & Tomasello 2009), demonstrating an early understand-
ing of the cooperative roles of both parties in testimonial
exchanges. As for the analogy of childrens leave taking behav-
ior, recent evidence reveals that children trust a speaker who
acknowledges her ignorance and a speaker who is accurate at sim -
ilar rates, but reject information from an inaccurate speaker who
acts as though listeners should believe her false claims (Kushnir &
Koenig 2017). It is possible that after hearing a speaker acknowl-
edge her ignorant state of mind, children credit the speaker for
clarifying her epistemic limits. Thus, compared to an inaccurate
agent who fails to do so, children are more likely to trust the pre-
viously ignorant speaker for new information. Further research
suggests that childrens reciprocity towards speakers is also similar
to that of cooperative activities. Indeed, young children prefer to
share more resources with accurate informants over inaccurate
ones (Ronfard et al. 2019), and choose to reciprocate with infor-
mative communicative partners over speakers that intentionally
withhold information (Dunfield et al. 2013). Together, these
lines of research suggest that children hold others not only mor-
ally responsible, but also epistemically responsible.
Tomasello argues that children display various behaviors
indicative of their understanding of obligation in joint intentional
collaboration. Do these behaviors differ depending on the type of
commitment that has been established? Recent work suggests that
children may evaluate moral and epistemic commitments differ-
ently. For example, an agents failure to uphold a spoken agree-
ment reduced childrens decisions to wait for future rewards
and their willingness to share with that agent, but did not affect
their willingness to learn new information from her (Pesch &
Koenig 2018
). Likewise, although an in-group members antiso-
cial behavior reduced childrens liking of and willingness to
share with her (which is consistent with Tomasellos review of
childrens understanding of moral obligations within their
in-group), childrens decisions to seek new information from
(Hetherington et al. 2014) or imitate (Wilks et al. 2018) the
in-group member were not attenuated. Work like this suggests
that a breach in moral obligations may not affect childrens eval-
uations of whether the agent can fulfill their epistemic obligations
(and vice versa).
In conclusion, we think that various aspects of Tomasellos
obligation account can be extended to the case of testimonial
learning, and that children likely treat testimonial transactions
as implicating distinctively interpersonal commitments and
responsibilities. Appreciating the shared nature of epistemic
responsibility between speakers and listeners opens new opportu-
nities for future empirical research to identify the various devices
used by speakers to commit themselves to the truth of what they
say, and the ways in which children detect epistemic commit-
ments and violations in their decisions to trust.
A lifelong preoccupation with the
sociality of moral obligation
Zoe Liberman
a
and John W. Du Bois
b
a
Department of Psychological & Brain Sciences, University of California, Santa
Barbara, CA 93106-3100 and
b
Department of Linguistics, University of California,
Santa Barbara, CA 93106-3100.
[email protected] labs.psych.ucsb.edu/liberman/zoe
[email protected] dubois.faculty.linguistics.ucsb.edu
doi:10.1017/S0140525X1900253X, e77
Abstract
Tomasello provides compelling evidence that children under-
stand that people are morally obligated toward members of
their social group. We call for expanding the scope of inquiry
to encompass the full developmental trajectory of humans
understanding of the relation between moral obligation, social-
ity, and stancetaking in interaction. We suggest that humans dis-
play a lifelong preoccupation with the sociality of moral
obligation.
Tomasello provides a compelling account in the target article that
moral obligations play a foundational role in the evolution of
human ultra-sociality, unique among primates (Tomasello &
Vaish 2013; Tomasello 2014b). In particular, Tomasello acknowl-
edges the importance of we-intentions (Searle 1995b; 2010),
through which social actors performatively constitute human
institutions and the facts they make possible, such as promises,
debts, and other obligations. Tomasello clearly highlights the abil-
ity of children as young as three to engage in we-intentions, and
to think of themselves as members of sociocultural groups, with
important consequences for moral obligation. But by focusing
on young children, Tomasello offers little to clarify how the
capacity for attunement to shared intentionality might develop
Commentary/Tomasello: The Moral Psychology of Obligation 33
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
in its earliest stages, and how it might continue to play a pivotal
role in social interactions later in life. Older children, adolesce nts,
and adults continue to participate in dynamic exchanges of
stances (Du Bois 2007) that invoke, evoke, or simply presuppose
moral obligations. We believe that the sociality of moral obliga-
tion represents a lifelong preoccupation of humans. Its founda-
tions are evident early in infancy, and the dynamics of its
constitution and the scope of its effects become both more
nuanced and more comprehensive with development.
How early in development do humans see the world as struc-
tured by social groups, and see themselves as morally obligated to
follow their groups norms? Tomasello argues that a shift happens
around 3 years of age. Specifically, he writes, Ontogenetically, it
is only children after three years of age who identify with their
culture in this manner (sect. 2.2, para. 1). But as Tomasellos
own recent work shows, even toddlers (18-month-olds) protest
when people do not conform to a partners action, particularly
when the action is situated within a normative game (Schmidt
et al. 2019). That is, when toddlers see someone do a novel action,
they are more likely to protest a second person who performs a
different action, in cases in which the first person clearly marked
that the action corresponded to a norm (How we do it).
Although these actions are taking place within a partnership,
they seem to indicate a broader understanding of obligations
incurred via a groups social norms.
In fact, a rapidly growing body of research suggests that the
origins of reasoning about people as members of social groups
is already in place in infancy, even before children would be
able to verbally protest (Liberman et al. 2017a). For example, in
addition to preferring to approach and learn from people from
their own group (e.g., Begus et al. 2016; Buttelmann et al. 2013;
Kinzler et al. 2007), infants in the first year of life expect people
from a group to act alike (Powell & Spelke 2013), to affiliate
(Liberman et al. 2017b), and to be similar to one another
(Liberman et al. 2016). Thus, even preverbal infants appear to
structure the social world into social groups, and to make infer-
ences about peoples likely traits and behaviors based on group
membership. Can these abilities be reconciled with an under-
standing of the we-intentions that would provide evidence of
cultural group membership? If so, are they indicative of
potential developmental precursors which can grow with the
experience of participating in the norms of a cultural group? If
not, is there any type of non-verbal evidence that could suggest
attention to we-intentions in infancy? In general, some
clarification is needed about where childrens clear understanding
of moral obligation to members of their own cultural group comes
from.
This points to further questions of mechanism for the learning
of we-intentions. Moral norms must be experienced, and learned,
through the scaffolding of interactional practices of stancetaking.
Moral evaluation is a stance act that is enacted by an individual,
but through social interaction it becomes contextualized as a we
act. According to the stance triangle model (Du Bois 2007), con-
versational partners calibrate the relationship between their
respective stances, undertaking a simultaneous commitment to
moral evaluation of an object; ethical positioning of themselves;
and affiliative alignment (convergent or divergent) with their
interlocutors (Du Bois 2007; 2014; Du Bois et al. 2014). When
a shared stance object commands our joint attention
(Tomasello 1988), it invites not only my expressed evaluation
but yours, plus a third aspect which may be explicit or implicit:
an assessment of the alignment between my stance and yours.
Children are attuned to stance alignment early, as suggested by
toddlers stances framed in dialogic resonance (Köymen &
Kyratzis 2014). Stance alignment continues to play a pivotal
role in the interactional construction of moral and social identity
through childhood, adolescence, and adulthood (de León 2019
;
Goodwin 2006; Stivers et al. 2011), in both typically developing
children and children with autism (Du Bois et al. 2014;
Sterponi 2004).
Although humans surely feel themselves subject to the com-
pelling force of moral obligations, they are also exquisitely attuned
to conflicting norms, which may compete for their allegiance
within and across groups. The possibility of negotiating which
obligation currently carries the greater moral imperative, given
the complexities and ambiguities of everyday social life, may
lead people to invoke, compare, reject, or adopt one moral prin-
ciple over another, ultimately resolving (or not) the vexed ques-
tion of what is the right thing to do. In the target article,
Tomasello provides striking evidence that moral obligations
emerge by early childhood and develop across the school years.
But we suggest it is important to consider a broader developmen-
tal time course and to come to terms with the cognitive and affec-
tive affordances, as well as interactional practices, that scaffold the
emergence of an increasingly nuanced attunement to moral obli-
gation within a social framing. Humans are an incredibly social
species: Our drive to cooperate and take stances that convey align-
ment with our own social group may be evidenced across the life-
span. Future research will benefit by bringing together converging
evidence from across the lifespan, drawing from naturally occur-
ring interactions and experiments, to clarify why, how, and with
what consequences humans manage the sociality of moral
obligation.
The sense of moral obligation
facilitates information agency
and culture
Heather M. Maranges
a,b
, Roy F. Baumeister
c
and Kathleen D. Vohs
d
a
Department of Psychology, Florida State University, Tallahassee, FL 32306;
School of Psychology;
b
Concordia University, Montreal, QC H4B 1R6, Canada;
c
University of Queensland, St Lucia QLD 407, Australia; and
d
Carlson School of
Management, University of Minnesota, Minneapolis, MN 55455.
maranges@psy.fsu.edu www.heathermaranges.com
r.baumeister@psy.uq.edu.au http://www.roybaumeister.com
[email protected] https://carlsonschool.umn.edu/faculty/kathleen-vohs
doi:10.1017/S0140525X19002334, e78
Abstract
Tomasello argues that humans sense of moral obligation
emerges early in development, relies on a shared we, and
serves as the foundation of cooperation. This perspective com-
plements our theoretical view of the human self as information
agent. The shared we promotes not only proximal cooperative
goals but also distal ones via the construction of shared under-
standing it promotes culture.
34 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Tomasello provides an elegant account of humans unique sense
of moral obligation. He argues that this sense of moral obligation
begins early in human development, features a shared we, and
facilitates cooperation. He cite s work demonstrating that human
children, but not other apes, feel and act on a special sense of obli-
gation to their cooperative partners, in-group, and cultural group
they share resources fairly and regulate their partners and them-
selves according to the implicit or explicit agreements of the
group. This analysis provides a potentially powerful explanation
to some vital phenomena about human selfhood and sociality.
This comment elaborates that connection.
Although the beginnings of culture may be found in several
dozen species (de Waal 2008), it is only among humankind that
culture is extensively developed so as to permeate almost every
aspect of life (Baumeister 2005). A major part of culture is shared
knowledge and understandings. Bourdieu (1977), a French sociol-
ogist, coined the term doxa to refer to that which goes without
saying”–the shared assumptions that enable human beings,
even strangers, to interact cooperatively for mutual benefit. Two
people who share an extensive doxa can begin interacting effi-
ciently without having to explain everything from the ground
up. We have argued that theories of the human self need to
include a recognition that human selves are information agents,
or builders of the doxa (Baumeister et al. 2018).
The early-emerging sense of we and moral obligation are nec-
essary for information agency. Humans have special motivations
and abilities to build the doxa: They not only collect information
(as other curious animals do) but proactively share it with group
members, critique it, pass along information from others, empha-
size shared understanding even over possibly more accurate private
knowledge, and more. For example, people, but not other animals,
sacrifice valuable resources to share information that may be useful
to others (e.g., Feinberg et al. 2012;Tamir&Mitchell2012), add or
subtract details to gossip to emphasize what is of most importance
to the group (e.g., DiFonzo & Bordia 2007), and as individuals or
institutions, systematically pass on culturally relevant information
(i.e., they teach; Csibra & Gergely 2009).
Based on Tomasellos analysis, we speculate that moral obliga-
tion was among the earliest sources of motivation to identify other
minds that might require the information one already has. In par-
ticular, obligation as collaborative self-regulation, whic h entails
group-mindedness and appreciation of social norms, encourages
people to share information broadly. Broadly shared knowledge
enables group members to access information that they may not
have personally gathered, to act on the same information and
beliefs, and, in turn, to cooperate more effectively. The extensive
benefits from ongoing cooperation would be a powerful selection
factor in favor of minds that could manage information agency.
Tomasellos work showed that this obligation is sharply reduced
with out-group members and even with in-group members who
have not collaborated in the current project. The latter understand
why they are not invi ted to share even despite being part of the
in-group.
Crucial to our analysis is not only the complementary under-
standings that one person owes another a reciprocal favor, but
also the mutuality of that understanding. The sense of obligation
is thu s not just a first step toward improved cooperation on spe-
cific tasks. It helps lay a foundation for culture. As Tomasello says,
it is not just that one person feels an obligation and the other feels
a right: they both know and accept that the other has those feel-
ings. Indeed, this soon moves beyond dyadic interaction, so that
the doxa belongs to the group. In other words, not only does
the individual feel an obligation the individual knows that
everyone in the group understands the obligation and will react
negatively if the individual refuses to honor it. Indeed, someone
who shirks such an obligation will be known in the group as self-
ish and uncooperative. This will be discussed first, as gossip
relates the nonreciprocation to the shared understanding of the
norm, and then the persons selfishness will become part of the
doxa. Everyone would know the person is selfish and uncoopera-
tive. And this could prove fatal.
In many animals, first interactions with strangers are occasions
for distrust, hostility, and even aggression. Humans are different.
Studies with the trust game have shown that many people will
make cooperative overtures to strangers (although preferably
those from the same culture), even at risk to themselves. The rea-
son appears not to be a strong expectation that ones trust will be
rewarded but rather a feeling that one is obligated to show respect
for the others integrity, even if one privately doubts it (Dunning
et al. 2014) or judges the stranger as having low self-control and
therefore poor moral character (Maranges & Ainsworth 2020). If
the other does not cooperate too, then the interaction can quickly
turn antagonistic; but starting off with a brief, tentative willing-
ness to make oneself vulnerable so as to offer a collaborative part-
nership is a huge step toward human culture. This step likely rests
on a deep sense of moral obligation to other group members.
Tomasellos view helps explain the psychological foundation of
information agency the shared we serves as a superordinate
schema that directs the self toward information beneficial to the
group and subsequent feelings of obligation beget motivation to
glean, edit, and share information with other group members.
Indeed, this builds on the analysis of the human self as an adap-
tation to enable the animal body to participate in a cultural group
(Baumeister et al. 2016). In other words, building and maintain-
ing the doxa is a basic purpose of the human self. It is itself a
cooperative enterprise. The collective understanding of the
moral psychology of obligation was probably a key step in this.
Obligations without cooperation
Julia Marshall
Department of Psychology, Yale University, New Haven, CT 06511.
[email protected] juliaannemarshall.com
doi:10.1017/S0140525X19002565, e79
Abstract
Our sense of obligation is evident outside of joint collaborative
activities. Most notably, children and adults recognize that par-
ents are obligated to care for and love their children. This is pre-
sumably not because we think parents view their children as
worthy cooperative partners, but because special obligations
and duties are inherent in certain relational dynamics, namely
the parent-child relationship.
Tomasello contends that our sense of obligation is instantiated
through agreement-like social interactions. For example, if I
promise a co-worker that I will attend her birthday party, I com-
mit myself to do so; and I would need to apologize or justify
myself if I failed to attend the birthday festivities. Tomasello
Commentary/Tomasello: The Moral Psychology of Obligation 35
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
further argues that, from a developmental perspective, this under-
standing of obligation is first evident in children inside, but not
outside, of collaborative activities structured by joint agency with
a partner.
I agree that obligations are often established through mutual
cooperative agreements. But, I disagree that (1) obligations arise
exclusively out of such arrangements and that (2) children first
feel the demand of an obligation only in the context of activities
structured by joint agency. Instead, it seems that some obligations
are inherent in certain types of social relationships namely, our
kinship relationships and, importantly, that children recognize
this from a young age.
Consider a father with a sick baby girl. The way he feels toward
his daughter fits into Tomasellos conception of obligation in
some ways but not in others. He likely feels a demanding and
coercive force to care for his sick daughter, and he would be
judged harshly if he decided to leave his daughter and go on a
vacation (Bloom 2011; 2013; Gopnik 2009). Importantly though,
a baby is not a cooperative partner with her father in any mean-
ingful sense; they are not attempting to accomplish a joint goal.
Instead, the parent is obligated to their child because the parent-
child relationship inherently requires care and love. And, this
holds true even when the baby grows up. Consider the case
where a child grows up severely brain damaged , which renders
them unable to presume the role of collaborative partner; a parent
is still obligated to care for their child. Furthermore, extreme cases
aside: Most parent-child relationships also purposefully lack a
joint collaborative element and are instead fundamentally
grounded in unconditional care and love (Clark & Mills 1993).
Social psychological and developmental research reveals that
children and adults understand that obligations exist not only
between collaborative partners but also between kin. For one, adults
evaluate unhelpful parents more harshly than unhelpful friends fol-
lowed by unhelpful strangers (Haidt & Baron 1996), as do older
children and adults (Marshall et al., in press). These effects emerge
presumably because parents are more obligated to their children
and are, in turn, evaluated more negatively for failing to help
them. In line with this interpretation, cross-cultural work reveals
that children at 7 years of age and older in both the United
States and India as well as adults in both countries consider parents
as obligated to their children (Miller et al. 1990) parents have to
help their children even if they do not want to and even if no law
existed requiring parents to take care of their children.
I along with my collaborators investigated how children even
younger than 7 reason about parent-child obligations. In these
studies (Marshall et al., in preparation), we were interested in
whether younger children like adults and older children con-
sider parents to be obligated to their children. We tested children
not only in the United States but also in India, Germany, Japan,
and Uganda to assess whether children vary in their sense of obli-
gation across different cultures. We presented children as young as
5 and as old as 10 with scenarios wherein a child needs help, either
because they were very hungry and did not have food or because
they fell and hurt themselves at a park. Importantly, these scenarios
did not involve any joint collaboration or commitment; neither the
parent nor the child were working toward a shared goal and had
not agreed to work together to accomplish a collaborative aim.
Consequently, we asked participants to determine whether the
parent of the child in need has to help the needy child. We mea-
sured obligations in this way because researchers have established
that asking children about what people have to do captures child-
rens sense of deontological obligation as distinct from childrens
sense of what usually occurs (i.e., frequency) or of what people
want to occur (i.e., preference; Kalish & Lawson 2008). The results
of these studies rendered a clear pattern: Children and adults
alike, regardless of age and culture, recognize that parents are
obligated to their kin. That is, all participa nts indicated that a par-
ent has to help their child. These studies, to us, demonstrate that
children as young as 5 do not think obligations are restricted to
contexts involving joint collaboration, but rather that obligations
are present within the parent-child relationship even absent a
mutual goal.
Nonetheless, these studies only involved children as young as 5;
Tomasello notes that even toddlers children around the age of
3 recognize the normative force of joint commitments.
Whether children younger than 5 also recognize the normative
force of kinship relationships is unknown. We suspect that tod-
dlers would, but it remains an open question for future research.
Regardless, the research discussed here, to us, provides compelling
evidence that children at least around the early elementary school
years appreciate the demanding quality of certain types of relation-
ships. This is not because children consider parents and children
as cooperative partners but because obligations are instantiated
within certain relational dynamics.
The nature of obligations
special force
David Olbrich
Department of Philosophy, University College London, London, WC1E 6BT,
United Kingdom.
doi:10.1017/S0140525X19002450, e80
Abstract
Tomasellos characterization of obligation as demanding and
coercive is not an implication of the centrality of collaborative
commitment. Not only is this characterization contentious, it
appears to be falsified in some cases of personal conviction.
The theory would be strengthened if the nature of obligations
force and collaborative commitment were directly linked, possi-
bly through Tomasellos notions of identity and identification.
It is a consensus among philosophers that moral obligation pos-
sesses some kind of special force in deliberation. Tomasellos
interpretation of obligation ascribes three additional characteris-
tics: He suggests that it is peremptory, that it is demanding, and
that it is coercive or at least has a kind of coercive quality (target
articles introduction, para. 1, item 1 [Special Force]). The idea
of peremptoriness is not mentioned again in this connection and
could have been explored further. But the rest of the interpreta-
tion will be contentious because there may be ways of apprehend-
ing obligation that do not represent it as demanding, peremptory
or coercive. The suggestion that the conjunction of these traits
forms a key explanandum within the theory of obligation will
therefore attract the objection that Tomasellos theory of obliga-
tion is too restrictive, since it is designed to deliver the result
that obligation is always all three.
36 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Room for objection here is partly due to the possibility of alter-
native theories of obligations special force. That obligation is
always felt to be demanding or coercive is not a direct implication,
for instance, of either the following theories: that a) obligation
(perhaps in just one sense of obligation) is what one has deci-
sive moral reason to do (Parfit 2011 ), or that b) obligation is just
what one can be intelligibly blamed for violating or what one
might intelligibly feel guilt for violating (Adams 2002).
On the other hand, some cases of personal conviction provide
apparent counterexamples to the claim that felt obligation is
always demanding and quasi-coercive. Not everything that it
feels necessary to do for moral reasons is felt to be coerced or
demanded from one. Williams (1981; 1993) illustrated how the
performance of some obligations is felt to be expressive of
character-constituting dispositions, so that someone refusing to
betray their spouse may discover that they are literally unable to
betray them and that that is a fact about their character. The
fact that they would feel the obligation as a demanding one
were they to be reluctant to discharge it does not show that,
absent that reluctance, the obligation is felt to be demanding.
Similarly, Tomasellos suggestion that a violation of obligation
would disrupt ones identity focuses too much on the agents rela-
tions to violation rather than successful performance; identity has
affirmative aspects too, and it may be that the performance of
obligation is felt necessary because that is who the agent feels
they are. This is not an instance of feeling coerced.
There are two elements of Tomasellos theory on which this issue
will genera te pressur e. The first is Tomasellosidea,drawnfrom
Darwall (2006), that apprehension of obligation inv olv es the agent
in an aw ar eness of the demands placed on them by others who
hav e the authority to mak e those demands. If our obligations are
demanded of us, then the conclusion is inescapable that they will
be felt to be demanding; conversely , a more expansive conception
of how obligatio n may be felt will require an abandonment of the
insistence that obligations are authoritat iv e demands. Second, ther e
is the proposal tha t the coerciveness of obligation originates in the
existence of an implicit threat to my identity (sect.3,para.6)
from the partners who may reject me, br eaking up the we
which is part of my identity, if I do not play my part in the collab-
orative commitment that defines us. But even if such a threat is ines-
capable and omnipresent , it does not follow tha t it should exhaus t
every aspect of the special force of obligation. A noncoer cive, non-
demanding special for ce will r equire an independent explana ti on.
Thus this issue regarding a slight expansion in one explanan-
dum touches on deep aspects of the theory. To the extent that
Tomasellos theory is offered as a supplement to Darwalls theory
of obligations demandingness, explaining what the authority to
make demands consists in, and how demands come to be seen
as legitimate, these problems will loom large since they require
a revision or extension of that very theory whic h is being supple-
mented. But the idea of the collaborative commitment that
Tomasello contributes might alternatively bear development out-
side that heavy theoretical machinery.
The prospects for such a development are promising. The exis-
tence of a collaborative commitment does not directly entail the
involvement of demands, directed by agents in that joint commit-
ment on other agents within it, that they carry out that commit-
ment. Rather, the issuing of demands, as it appears in the
experiments Tomasello cites, evidently serves a regulatory purpose:
agents who stray from what the collaborative commitment requires
of them are brought back to the required behaviour. Even if the
implicit issuing of demands is involved in all actual collaborative
commitment behaviour, the connection here is contingent and
not constitutive. The securing of compliance through the coercion
of an implied threat of deprivation of group membership, too, acts
as a second-order compliance mechanism. On some occasions
these mechanisms may be neutralized or weakened; although
such situations may disrupt the ability to ensure compliance with
the commitment, the inoperativ eness of the compliance mechanisms
would not r ender the shared commitment itself inert. When this
potential complexity in the relation between commitment, demand,
and thr eat is registere d, room is made for a more flexi ble treatment
of the various, possibly heterogenous, ways in which obligations may
figure within delibera tion and be felt emotionally.
The basic phenomenon, shared commitment, may make its own
contribution to the way in which the obligations of that commit-
ment are felt. Distinctive in Tomasellos posited we > me motiva tion
is the notion of a commitment tha t agents themselv es identify with
insofar as they share in the collabora tive project that cons titutes the
relevant aspect of in-group membership. If an agent identifies with
this commitment deeply enough, they will ipso facto be motivated to
discharge it, but the fact that the commitment originated externally
will make a difference to the kind of force the obligation has for
them. That it is possible to develop the idea of commitment without
recourse to the notion of demand shows that Tomasellostheoryis
not quite as close to Darwalls theory as he thinks it is.
A hard choice for Tomasello
Philip Pettit
a,b
a
University Center for Human Values, Princeton University, Princeton, NJ 08544
and
b
School of Philosophy, Australian National University, Canberra, ACT 0200,
Australia.
[email protected] http://www.princeton.edu/ppettit
doi:10.1017/S0140525X19002346, e81
Abstract
Michael Tomasello explains the human sense of obligation by
the role it plays in negotiating practices of acting jointly and
the commitments they underwrite. He draws in his work on
two models of joint action, one from Michael Bratman, the
other from Margaret Gilbert. But Bratmans makes the explana-
tion too difficult to succeed, and Gilberts makes it too easy.
Michael Tomasello begins his engaging target article by marking
two features of the human sense of obligation. First, it has peremp-
tory force: Unlike the most basic human motivations, which are
carrots, obligation is a stick (Introduction, para. 1, item 1
[Special Forces]) And second, it is socially embedded: Breaches of
obligations often prompt normative protest, from the offended
party, and apologies, excuses, and justifications, from the offender
(Introduction, para. 1, item 2 [Special Social Structure]).
I agree that obligations, at least those we associate with moral-
ity, have these features. Together, they mean that when we face
a conflict between inclination and obligation, going with the
inclination giving in to it counts as a sort of failure, leading
to a sense of guilt; in particular, a failure for which others
will hold us responsible and which we will be expected to explain
away or apologize for.
Commentary/Tomasello: The Moral Psychology of Obligation 37
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Tomasello postulates that selectional pressures have elicited a
capacity among humans to pursue goals jointly: a species-unique
preference for pursuing goals by collaborating with others
(sect. 2.1.2.1, para. 1). And he thinks that this generates a feeling
among them of obligation or responsibility to treat their partner
respectfully and fairly (sect. 2.1.3, para. 1). He documents this
idea in evolutionary and developmental terms, showing that
even toddlers feel the normative force of joint commitments to
collaborate (sect.2.1.2.1, para. 3).
The account sketched is not only evolutionary and develop-
mental, it is meant to operate at the level of both interpersonal
and society-wide morality. My remarks here bear most directly
on the evolutionary story at the interpersonal level. They rehearse
a difficulty I have elaborated elsewhere (Pettit 2018b), on the basis
of a distinct, language-dependent story about how morality could
have emerged among creatures like our forebears in Erewhon (an
anagram of nowhere) (Pettit 2018a).
In expanding on the fact that we are a collaborative, interde-
pendent species, Tomasello draws on the literature of joint action,
in particular the work of Mich ael Bratman (2014) and Margaret
Gilbert (2014). But these philosophers have presented two very
different models of joint action, as indeed Tomasello (2016a)
has noted elsewhere, and I see a problem for his derivation of
the human sense of obligation, if he starts from either. Hence
my claim that he faces a hard choice.
Bratman offered a normatively austere account of how joint
action may materialize. According to him, all that may be needed,
roughly, is that it is a matter of common assumption among two
or more agents that they each desire a certain result say, saving a
child in the water; that there is a certain plan whereby they achieve
that result together rather than on their own this may involve
forming a chain into the water; and that if they play their part
in that plan, then others will play theirs.
Gilbert offered an alternative under which this is not sufficient,
and may not even be necessary. According to the alternative, what
is also needed, roughly, is that each at a cr ucial point recognizes
that there is a joint commitment among the parties to carry
out the plan, where this shows up in the fact that they will com-
plain to and about any defector.
Gilberts account is normatively richer than Bratmans,
because it presupposes that the people involved in the joint action
have mastered a normative concept: that of a joint commitment.
This concept is normative insofar as it is already tied up with the
idea of obligation and responsibility; as she presents it, people can
understand what a joint commitment is only insofar as they have
an idea of what it is to hold someone responsible.
If Tomasello goes with Bratmans model of joint action, then it
is not clear to me how he can get a sense of obligation out of it
(Pettit 2018b). He argues plausibly that the parties to joint activity,
even understood on this model, will each try to choose and control
partners so as to maximize the chance of success, recognizing the
traits that make a partner attractive; and that their reliance on joint
action will lead, across a variety of contexts, to a pattern of partner
assessment and selection, reform and rejection. But why should
this introduce a sense of obligation among participants?
As I view things, such joint activity might have evolved, at least
in a basic form, under familiar mechanisms of reciprocation illus-
trated by the tit-for-tat discipline (Axelrod 1984;Nowak2006).
Thus, I see no convincing reason why early humans, in
view of having developed a unique form of partner control
(Sect. 2.1.1, para. 2) and even a unique sense of a joint we”–
should have begun to hold one another responsible for failures,
protesting normatively against non-cooperative behavior and
giving the non-cooperator a chance to mend her ways voluntarily
of her own accord
(Sect. 2.1.1, para. 2).
Would Gilberts account serve Tomasello better? Yes, but with-
out offering an explanation of how early humans could have pro-
gressed from a stage where they lacked normative concepts, in
particular that of obligation, to one at which they developed
them. Her model puts the normative in place at the beginning
so that it leaves us unsurprised, but also unenlightened, by the
fact that it also appears at the end.
I am persuaded by Tomasello that we have inherited distinc-
tively collaborative dispositions from early humans, and that
even children articulate them normatively. But I think that the
dispositions might have operated in early humans without nor-
mative conceptualization and that something else is needed to
explain how we came to think in a normative fashion and to reg-
ulate our interactions normatively.
How is the moral stance related to
the intentional stance and group
thinking?
Hannes Rakoczy
Department of Developmental Psychology, Institute of Psychology, D- 37073
Göttingen, Germany.
https://www.psych.uni-goettingen.de/en/development?set_language=en
doi:10.1017/S0140525X19002413, e82
Abstract
The natural history of our moral stance told here in this com-
mentary reveals the close nexus of morality and basic social-
cognitive capacities. Big mysteries about morality thus transform
into smaller and more manageable ones. Here, I raise questions
regarding the conceptual, ontogenetic, and evolutionary rela-
tions of the moral stance to the intentional and group stances
and to shared intentionality.
The target article tells a natural history of our moral stance. Although
philosophers have long been analyzing the conceptual peculiarities of
our specifically moral engagements with each other, our rea ctive atti-
tudes, second-person feelings, and the like, Tomasellos project aims
at tra cin g their natur al foundations. Building on decades of research
in deve lopmental and compara ti v e psychology , Tomasell o closely ties
the phylogeny and ontogeny of the moral stance to more basic
social-cogniti v e capaciti es in particul ar the inten tional stan ce,
shared intentionality, and group thinking. This project certainly pre-
sents massive progress in na turalizing morality.
Here, I simply ask how, exactly, the moral stance relates to the
intentional stance, to shared intentionality and to group thinking.
Clearly, the four stances (intentional stance, shared intentionality,
group stance, moral stance) are very closely related, and one of the
main merits of the target article is to highlight this very nexus. At
places, however, the target article reads as if the links were so close
that the stances almost coincide: This creates the most basic []
distinction [ ] between those of us who, by following and
38 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
enforcing the practices and beliefs of our culture, are rational/
moral beings, and those from alien groups (barbarians) who are
not rational/moral beings at all (sect. 2.2.1, para. 3). This passage
thus sounds like there may really be only one unitary distinction
in our social cognition: between rational agents (subject to the
intentional stance) with whom one can enter into shared inten-
tionality, that are members of ones tribe (group stance) here
and subject to the moral stance; and the rest (barbarians)
there, who are neither rational nor members of ones group, part-
ners for shared intentionality nor mo rally relevant agents.
But the real relations between the four stances are probably
much more complex: That some basic form of the intentional
stance and shared intentionality can come apart is exemplified
by the Machiavellian intelligence of nonhuman great apes (who,
according to Tomasello, understand each other as rational agents
in some basic sense without ever entering into shared intentional-
ity) and (perhaps) human psychopaths. The relation between
shared intentionality and the group stance is complicated by the
fact that there is no such thing as the one and only way to catego-
rize groups. Rather, social group concepts work in complex, criss-
crossing, and partly hierarchical ways. In a soccer game, for exam-
ple, we (the back four) play our part so that we (the 11 players
of our team) succeed against them, but a different we (the 22 of
us on the pitch) are playing this match according to conventional
rules that yet another we (the community of football players) fol-
low. Each of these hierarchically structured group categorizations
go along with some forms of shared intentionality, but arguably
very different ones ranging from very concrete and action-based
to abstract and far-reaching in temporal and spatial scope.
Tomasellos bi-partition into dyadic and group-based shared inten-
tionality is an important step towards recognizing this plurality of
shared intentionalities, but it may not be fine-grained enough.
This becomes even clearer when considering the relations
between group thinking, shared intentionality, and the moral
stance, or normative stances more generally. Some normative
stances may be intimately linked, conceptually, ontogenetically
and evolutionarily, with more or less small-scale, tribe-like group
conceptions. This pertains, roughly speaking, to local, conventional
customs that solve coordination problems. Such customs are arbi-
trary: they are such and so (driving on the right; putting the knife
right of the plate), but could have been different (driving and kni-
ves left). Correspondingly, they are context-relative in a strong
sense: Since they derive their existence from the shared intentional
practices of the more or less small-scale group, they are valid only
in the context of the groups activities; and if the group changes its
intentions, agreements, or decisions, the conventions change.
The moral stance as we know it, in contrast, seems not to be
contingent in the same ways on the concrete shared intentionality
of local, small-s cale group practices. If it depends on group cate-
gorizations and corresponding shared intentionality at all, these
are located at much higher levels of abstractions, pertaining to
the class of rational agents, potential interlocutors, or the like.
The moral stances derive their status from our sharin g a nature
of rational, sentient beings rather than from sharing an intention
to perform this or that concrete collective activity (Nagel 1970a).
Quite young children seem to be aware of this fundamental
difference between rational and moral versus conventional nor-
mative stances to some degree: They understand that moral
norms pertaining to human well-being and justice, for example,
lack the relativity to local, group-based customs and shared inten-
tionality typical of arbitrary conventions (Turiel 1983). And they
enforce norms of rationality and moral norms vis-à-vis other
agents irrespective of their group status, whereas they hold only
in-group members responsible with respect to conventional
norms (Schmidt et al. 201 2).
In general, group categorization and the corresponding forms
of shared intentionality range from the concrete, action-based,
transient, and very local matters of, say, a pair of dancers to the
maximally abstract category of rational sentient beings (which,
depending on technology and ideology may include [some] ani-
mals and robots besides humans). The normative stances related
to these different levels and layers of groups and shared intention-
alities differ in fundamental ways. It will be crucial for future
research to better understand how, exactly, group stances, the
intentional stance, shared intentionality and the moral stance,
relate to each other developmentally. This would be enlightening
theoretically, but may also be important politically: In light of
threats by new moral tribalisms around the globe, such a better
understanding may help to secure moral enlightenment and pro-
gress with its ever-widening scope. As Sellars emphasized long ago:
To think of a featherless biped as a person is to construe its behaviour in
terms of actual or potential membership in an embracing group each
member of which thinks of itself as a member of the group. Let us call
such a group a community. Once the primitive tribe, it is currently
(almost) the brotherhood of man, and is potentially the republic of
rational beings (cf. Kants Kingdom of Ends). (Sellars 1962, p. 76f.)
Caregiving relationships as
evolutionary and developmental
bases of obligation
Rachna B. Reddy
a
and Henry M. Wellman
b
a
Department of Anthropology, University of Michigan, Ann Arbor, MI 48109 and
b
Department of Psychology, University of Michigan, Ann Arbor, MI 48109.
ra[email protected] https://sites.lsa.umich.edu/rachnareddy/
doi:10.1017/S0140525X19002504, e83
Abstract
Obligation as defined by Tomasello requires mutually capable
parties, but one-sided caregiver relationships reveal its develop-
mental and evolutionary precursors. Specifically, coercive
emotions may prompt protective action by caregivers toward
infant primates, and infants show distress toward caregivers
when they appear to violate expectations in their relationships.
We argue that these early social-relational expectations and
emotions may form the base of obligation.
In this target article, Tomasello tackles the internalized motiva-
tions that he believes drive the morality of a collective we that
is foundational to our distinctly cooperative and moral species.
He argues for a human-specialized feeling and cognitive under-
standing of obligation that is coercive. It drives us like a
stick rather than a carrot. The emotions that surround it,
such as guilt and shame, are reflective ones.
We agree that obligations and the emotions surrounding them
are (1) understudied yet importantly linked to the prosocial,
Commentary/Tomasello: The Moral Psychology of Obligation 39
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
group-serving proclivities of our species, (2) early developing in
children, and (3) from current evidence seemingly absent in our
closest primate relatives. We also agree that child developmental
and primate-comparative findings can be used to support evolu-
tionary hypotheses. But we think Tomasello has overlooked a cru-
cial place to examine evidence for the evolution and development
of obligation. Specifically, he writes that obligative forces arise
only between individuals who can hold one another mutually
accountable: thus, human infants are excluded from obligatory
contracts. No doubt mutual accountability is foundational to
obligatory understandings. But, one-sided caregiver relationships
may be precisely where the emotional and cognitive precursors
to obligation have their evolutionary and ontogenetic starts.
In species that care for their young, there are few forces more
emotionally coercive than an infant in danger. Even non-
parents may see to their needs. For example, female ring-tailed
lemurs permit infants who are not theirs to leap onto their
backs when a raptor flies overhead (Gould 1992), colobus monkey
males clutch infants to their chests for safety when chimpanzees
hunt them (Reddy, personal observations, 2019), and teenaged
chimpanzees may whimper and search for their orphaned youn-
ger siblings if they fall behind the group, risking becoming lost
themselves (Reddy & Mitani 2019).
The preceding behaviors do not necessarily reveal the sort of
action and feelings that Tomasello emphasizes as mature signs
of obligation. No current evidence exists, for example, that non-
human primates of any age ruminate upon their guilt if their vul-
nerable charges (or their mutually accountable friends) are
killed when they could have acted (despite exhibiting grief-like
symptoms upon the deaths of close companions, e.g., Engh
et al. 2006). Yet, the swiftness with which they act protectively,
and the visible distress they show when others are in danger indi-
cate the probability of coercive emotions that prompt these
actions emotions that could provide evolutionary and develop-
mental foundations to a more reflective emotion like guilt and the
actions it prompts (e.g., apology).
Moreover, although young human infants (and nonhuman
primates) may not understand terms of obligation in full
force, they do appear to have expectations about their social rela-
tionships and show distinct responses in situations when those
expectations are violated. For example, when adults do not
smile at them in the classic still face paradigm, human infants
cry. From 810 months of age they also show distress and act pro-
actively if they witness moral violations or unfairness or experi-
ence it themselves (Hamlin 2013).
When their mothers attempt to wean them, young chimpan-
zees throw tantrums, screaming, wailing, and occasionally hit-
ting and biting their mothers. When young humans dont get
their way, they throw tantrums too, as characteristic of the terrible
twos. The distress shown by infants of both species toward their
caregivers may reflect their displeasure at the experience alone
(e.g., hunger) and their knowledge that their caregiver will tolerate
such an outburst. However, tantrums may also reflect a proto-form
of emotional outrage that infants have when their caregivers
behave differently from usual within their relationship. How
caregivers respond in these situations is further interesting.
Chimpanzee mothers attempt to ignore their infants tantrums,
but occasionally appear to become distressed and frustrated them-
selves: when their infants hit them repeatedly on the back, for
example, mothers may turn around, grab infants by the arms
and shake them. Critically, however, mothers often then swiftly
pull infants into tight embraces (Van Lawick-Goodall 1968;
Reddy, unpublished data, 2019). The human parallels are obvious:
parents often report guilt about how angry they become in the face
of child tantrums. We do not suggest that anything like guilt and
apology motivate these reconciliatory
actions in chimpanzees
(cf. de Waal & van Roosmalen 1979), but chimpanzee mothers
do follow their aggressive actions with a comforting one that ame-
liorates their infants distress.
Furthermore, the emotions and expectations human infants
and non-human primates have about their own caregiving rela-
tionships suggest that it is some quality of social bonds
themselves, not collaborative capability or willingness of the indi-
viduals alone, that provide the basis for proto-obligatory terms.
Consider one of Tomasellos own examples: Chimpanzees do not
share meat with all others who attempted to hunt, but they do
share with and beg from friends who are their allies over others
(Mitani et al. 2000). They continue to share meat when one of
the friends has grown old and weak and is no longer a competent
collaborative partner. Furthermore, at older ages (at least) both
nonhuman primates and human children show emotion and
form social expectations not only about their own relationships,
but also about the relationships of third parties (e.g., Cheney &
Seyfarth 1980; Rhodes & Wellman 2017).
Essentially, we propose that proto-obligatory motivations and
expectations may begin with, X helps me because X is my
mother/I must help X because X is my offspring. As individuals
in group-living species grow up, this understanding may develop
into because X is my friend and because X is Ys daughter. In
our species, children (from at least age 3 onward) may develop
obligatory feelings and understanding as Tomasello describes of
a more self-reflective nature: I must help X. It is nearly impos-
sible to disentangle the preceding motivations in natural contexts,
suggesting the need for work that will integrate natural observa-
tions of relationships with experimental studies. For children, how
and when do actions and feelings of obligation arise when the
other person is a caregiver (e.g., mother)? For chimp anzees and
children, students of Tomasello have already begun related
work, finding that friendships influence helping propensities in
both chimpanzees and human children (Engelmann et al. 2019).
Does the concept of obligation
develop from the inside-out or
outside-in?
Marjorie Rhodes
Department of Psychology, New York University, New York, NY 10003.
[email protected] http://kidconcepts.org.
doi:10.1017/S0140525X19002590, e84
Abstract
Tomasello proposes that the concept of obligation develops
from the inside-out: emerging first in experiences of shared
agency and generalizing outward to shape childrens broader
understanding. Here I consider that obligation may also develop
from the outside-in, emerging as a domain-specific instantia-
tion of a more general conceptual bias to expect categories to
prescribe how their members are supposed to behave.
40 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Tomasello proposes that the concept of obligation emerges in a
manner that I will call, from the inside-out. A sense of obliga-
tion emerges first in childrens experiences of shared agency
where they feel a sense of obligation to their collaborative partners
and is then generalized outward to develop a more abstract sense of
obligation among group members. On this account, children begin
to feel obligated to their group members and to see their group mem-
bers as obligated to them simplybecausetheyareinthesamepack
by around their third birthday.
Here I consider that the concept of obligation might also (or
alternately) develop from the outside-in. That is, that children
have abstract intuitions about social structure that develop sepa-
rately from their own interpersonal interactions.
Already by age 3, and perhaps earlier in infancy (Ting et al.
2019), children have an abstract understanding that social groups
specify who is obligated to one another and who is not (Chalik &
Rhodes, forthcoming). We know that this understanding is
already abstract not tied to childrens own perspective because
children rely on it to guide their social understanding even when
they are not members of the relevant groups.
To illustrate, in Rhodes (2012; also described in the target arti-
cle, sect. 2.2.2.3, para. 2) children were introduced to two
made-up social groups (called flurps and zazes); children
had never heard of these groups before and were not assigned
to be members of either group. In these studies, by age 3, children
predicted that a flurp, for example, would harm a zaz, rather than
another flurp. In Rhodes (2012), I speculated that these findings
had to do with a sense of obligation that children expected
the flurp to avoid harming another flurp because, as group mem-
bers, they were obligated to protect one another. Indeed, in
Rhodes and Chalik (2013), children judged flurps to hold intrinsic
obligations to one another but not to zazes.
If the concept of obligation that drove childrens responses in
these studies developed from the inside-out, then we might expect
children to solve these problems by placing themselves in the shoes
of a flurp. That is, they might identify with the agent, and think of
the other flurps as their in-group members. We might expect this
to be particularly so around age 3, when children are just beginning
to generalize from their own experiences outward. But this is not
how children thought about these problems. When children are
themselves put into made-up groups during experiments (e.g.,
Dunham et al. 2011), the first (and sometimes only) thing that hap-
pens is that they feel and respond more positively toward members
of their own group (for review, see Dunham 2018). But children did
not show any evidence of in-gr oup positivity in these studies when
asked who a flurp would do something nice for, they responded at
chance. Childrens responses in these third party scenarios where
they reliably expected flurps to harm zazes but to be equally nice to
everyone (Chalik & Rhodes 2018;Rhodes2012) is exactly opposite
to how children respond when they themselves are placed in
made-up groups (where they are nicer to in-group members but
not particularly mean to out-group members (Buttelmann &
Boehm 2014;Dunhametal.2011). Thus, when children predicted
that flurps would harm zazes, they relied on abstract intuitions
about how group memberships specify social obligations, rather
than their own first-person perspectiv e.
From where would children get such an early developing
abstract understanding of obligation if not by generalizing their
own social experiences
? One possibility is that childrens concept
of obligation develops as a specific instantiation of a more general
conceptual bias to treat categories as constraining what their
members are supposed to do. This is a domain-general feature
of early concepts. For instance, children do not just think that
cheetahs usually do run fast, they think they are supposed to
(Haward et al. 2018; Foster-Hanson & Rhodes 2019). Children
think there is something wrong with a category member who
does not follow the norms of their group (Roberts et al. 2017)
and they hold this intuition just as strongly for categories of ani-
mals as for categories of people (Foster-Hanson et al. 2018).
Children also think that the clearest and most informative exam-
ple of an animal category is the one that best illustrates these pre-
scribed properties, even if such an instance is rare (e.g., the very
fastest cheetah in the world; Foster-Hanson & Rhodes 2019;
Foster-Hanson et al 2019). As another example, children also
think that artifacts are supposed to fulfill their intended functions,
and again, that there is something defective with one that does not
(Diesendruck et al. 2003).
Thus, by early childhood, children have abstract, domain-
general intuitions that categories prescribe how their members
are supposed to be. In the social domain, this is instantiated as
an expectation that categories constrain how people are supposed
to treat one another, whereas in other domains it is instantiated in
other ways (e.g., regarding how animals are supposed to get food,
avoid predators, and so on). From this perspective, the general
processes that drive concept ual development in which children
actively build hierarchical representations to make sense of vari-
ous domains of experience (Gopnik & Wellman 2012) can
lead children to develop an abstract understanding that members
of a group hold special obligations to one another, separately from
their own experiences with shared or collective agency.
Of course, both types of developmental pro cesses could simulta-
neously be at play children could both develop a sense of their own
obliga tion s via their experienc es with shared agency and begin to
generalize them out, while at the same time, the mechanisms that
underlie conceptual development lead them to construct an abstra ct
understanding of the normativ e implications of group membership.
A full developmental theory of how this critical concept arises would
needtoexaminealloftheseprocessesandhowtheymightrelateto
one another across early childhood development.
Feelings of obligation are valuations
of signaling-mediated social payoffs
Amanda Rotella
a
, Adam Maxwell Sparks
b
and Pat Barclay
a
a
Department of Psychology, University of Guelph, Guelph, ON, N1G 2W1,
Canada and
b
Department of Anthropology and Center for Behavior, Evolution
and Culture, University of California, Los Angeles, CA 90095-1553.
[email protected] http://amandarotella.ca/research/
[email protected] http://adammaxwellsparks.com/
barclayp@uoguelph.ca http://www.patbarclay.com/
doi:10.1017/S0140525X19002322, e85
Abstract
We extend Tomasellos framework by addressing the functional
challenge of obligation. If the long-run social consequences of a
decision are sufficiently costly, obligation motivates the actor to
forgo potential immediate benefits in favor of long-term social
Commentary/Tomasello: The Moral Psychology of Obligation 41
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
interests. Thus, obligation psychology balances the downstream
socially-mediated payoffs from a decision. This perspective can
predict when and why obligation will be experienced.
Tomasello advances a novel framework regarding the phylogeny
and development of obligation, describing obligation as a coercive
motivation. However, he did not explicitly define this motivation.
To extend Tomasellos argument, we advance the following defi-
nition of obligation: An obligation is a motivational sentiment in
response to social expectations (e.g., requirements, commitments,
taboos, rules) and potential social costs (e.g., loss of relationships,
reputational consequences) which serves to motivate an individual
to perform an action in a particular manner or to a level beyond
what would maximize ones inclusive fitness if there were no social
costs for acting otherwise.
This definition adds to Tomasellos characterization of obliga-
tion by specifying that (1) there is a baseline willingness to per-
form said actions for example, the material outcome is useful
to me or to those I value based on kinship or interdependence
or stake (see Aktipis et al. 2018, Balliet et al. 2017); (2) social obli-
gations can make one willing to perform these actions differently or
to a higher level than one might otherwise want (e.g., allocating
resources differently than the level predicted from kinship, indepen-
dence, and stak e); (3) these obligations derive from per ceiv ed recip-
rocal or reputational consequences of (not) doing so (i.e., future
costs and benefits); and (4) that the str ategy of this system is at
the functional level, and need not be consciously accessible.
For oblig ation to be adaptive, the mechanism must resolve a
fitness problem. Here, it accounts for negative social conse-
quences for not performing an expected action, or not performing
it in the expected way. Performing an obligated action sends
information a positive social signal to an individual or group,
whereas failing to perform the action sends the opposite signals
(e.g., that one (de)values the relationship or membership, that
one is (un)likely to default on existing relationships, or that one
is (un)trustworthy). Given that reputation-based signals inform
social decisions of others, such as partner choice, approach, and
avoidance (Barclay 201 3; 2016; Barclay & Willer 2007; Sylwester
& Roberts 2010; 2013; Wu et al. 2016), (in)action could result
in broad social consequences with long-term costs, such that
someone (not) performing an action may be chosen less often
as a social partner and receive less help from others. Consistent
with this interpretation, multiple lines of evidence suggest that
people calibrate their behaviors according to the perceived repu-
tational costs and benefits of their actions (Barclay 2013; 2016;
Barclay & Willer 2007; Feinberg et al. 2014; Rotella et al., in prep-
aration; Wu et al. 2016). Notably, when one fails to compl ete the
expected action, they may experience social emotions (e.g., guilt,
shame) to motivate them to repair the relationship or diminish
the reputational costs (Ketelaar & Au 2003; Schniter et al. 2012;
Sznycer et al. 2016; 2018). This characterization of obligation pos-
its that the intensity of the perceived obligation will correspond to
the perceived social consequences from failing to meet the expec-
tations of others.
We can formalize this at the functional level. There are multi-
ple pathways to fitness outcomes (reviewed by Barclay & Van
Vugt 2015), so there are multiple proximate motivation systems
that cause our willingness to help. For example, one can have a
kin-based interest and a reciprocal exchange interest in the
same partner (e.g., I love you brother, but this is a huge favor
youd better repay it). Thus, ones total fitness interest and corre-
sponding proximate willingness to help (h) is some cumulative
function of fitness consequences derived based on kinship (k),
interdependence/stake (i), demands from reciprocal partners (d),
signaling value (s), and payoffs from various other social expecta-
tions (e), such that h = k + i + d + s + e. These various social out-
comes (d, s, e) constitute ones obligation (o). If these
motivations are additive, then ones obligation o = d + s + e. To
generalize this to non-additive functions, ones willingness to
help is some function (f) of these factors, such that h = f(k,i,d,s,
e). As such, ones obligation is the component of one
s willingness
which goes beyond the level directly predicted by kinship and
interdependence/stake alone that is, o = f(k,i,d,s,e) f(k,i). This
model is consistent with the idea that as social demands are
greater, stronger feelings of obligation will be experienced.
Further, obligation will be perceived as a motivating force in situ-
ations where there is a conflict of interest, resulting in a proximate
ambivalence when you have to do X but want to do Y.
Although joint intentionality often precedes obligation, our
theorizing suggests that joint intentionality is not required to
experience obligation; the feeling of obligation arises anytime
that failure to complete the obligated action would result in neg-
ative social consequences. For example, dieting or raising pets and
houseplants do not require joint intentionality. However, once
these commitments are public knowledge ( joint knowledge or
expectations), one may feel obligated to persist because desisting
would convey negative information about oneself.
In summary, we posit that obligation will be experienced when
(1) there are learned social expectations (towards an individual or
group) that, if failed, can result in far-reaching social conse-
quences by impacting ones reputation; (2) these expectations
implicitly or explicitly motivate people to act in a different man-
ner or to a different degree than they would otherwise act; and (3)
the function of moral obligation is to forgo short-term benefits
likely to be associated with long-term social consequences. In
the absence of reputational concerns (real or perceived), it is
unlikely that feelings of obligation will be elicited. Our theorizing
is consistent with the characteristics of obligation described by
Tomasello, such that obligation is a special motivational force
with a coercive quality which has a special social structure in
human society, given the complexity of human social interactions.
Thus, we extend his model by emphasizing the role of social
repercussions especially via signaling in driving the experience
of obligation, and that obligation is particularly salient when there
is a conflict between ones immediate inclusive fitness interests
and the potential downstream social consequences of deviating
from others expectations.
Who are we? Dealing with
conflicting moral obligations
Alex Shaw
a
and Shoham Choshen-Hillel
b
a
Department of Psychology, University of Chicago, Chicago, IL 60637 and
b
Hebrew University of Jerusalem, School of Business Administration and the
Center for the Study of Rationality, Mt. Scopus, Jerusalem 9190501.
[email protected] https://www.dibslab.uchicago.edu/
[email protected] https://shohamchoshen.wixsite.com/psych
doi:10.1017/S0140525X19002577, e86
42 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Abstract
Satisfying ones obligations is an important part of being human.
However, peoples obligations can often prescribe contradictory
behaviors. Moral obligations conflict (loyalty vs. fairness), and so
do obligations to different groups (country vs. family when one
is called to war). We propose that a broader framework is needed
to account for how people balance different social and moral
obligations.
So many vows. They make you swear and swear. Defend the King, obey the
King, obey your father, protect the innocent, defend the weak. But what if
your father despises the King? What if the King massacres the innocent? Its
too much. No matter what you do, youre forsaking one vow or another.
Jamie Lannister, Game of Thrones.(Benioff&Weiss2012).
Tomasello provides a detailed account suggesting that the sense of
obligation is a central human motivation. According to this
account, the sense of obligation arises out of the need to cooperate
in order to survive and thrive in the socia l world. We agree that
obligations are indeed an important part of being human.
However, we highlight the notion that mutualistic cooperation
is just one of many potential triggers of social obligations people
have obligations to myriad individuals, groups, and moral princi-
ples even in situations where they do not directly or profitably
cooperate with those individuals. A key question left unanswered
by Tomasellos account, we argue, is how people navigate such
obligations when they conflict.
Our social world often confronts us with obligations that con-
tradict one another. One prominent case is allegiances to different
groups. Tomasello theorizes that obligation is based on a we
experience with ones group. However, most indivi duals form
we relationships with several different groups and subgroups:
people are parents, siblin gs, friends, bosses, subordinates, citizens,
and members of the human race (Turner et al. 1987). The obliga-
tions to all these groups often clash. For example, a man called to
war may be torn between his duty to serve his country, and his
direct responsibility for taking care of his family. People further
feel a sense of obligation to their moral principles that can also
conflict. People believe that it is important to avoid harm, but
also that it is important to prevent others from dying but
what should one do when harming someone can lead to saving
more lives (Greene 2008)? Be a loyal friend, and also treat every-
one equally and fairly but what if helping your friends means
showing favoritism (Shaw et al., in press; Waytz et al. 2013)? Be
honest, and be kind but what do you do when a friend who
just got a terrible haircut asks: Does my hair look good?
(Levine & Schweitzer 2014 ). Research on adults suggests that peo-
ple are able to balance these competing obligations in complex
ways.
There is now a growing body of research demonstrating that
such conflicts of obligations emerge early on in human develop-
ment. This research suggests that the ability to resolve these con-
flicts may be an im portant part of childrens early normative
understanding. By the age of 6, children feel tensions between rec-
iprocity and fairness; feeling conflicts about whether they should
like someone who gave them more than others or someone who
was fair and gave everyone the same (Shaw et al. 2012). Relatedly,
children understand both the obligation of efficiency (i.e., maxi-
mizing social welfare), and the obligation to be fair and maintain
equity, and attempt to strike a balance between them
(Choshen-Hillel et al., in press). Children are also able to navigate
multiple concerns about avoiding harm and saving others when
introduced with Trolley-like dilemmas (Levine et al. 2018).
Further, children can balance concerns with honesty and benevo-
lence, judging lies that are meant to benefit others as less immoral
than selfish lies (Fu et al. 2015). Indeed, in some circumstances
the cold truth might be seen as less kind and desirable than a
polite lie. Taken together, these results reveal that navigating con-
flicting moral and social obligations is an important and basic
part of existing and thriving in the social world.
Research reveals that there are many factors that determine
which obligations people choose to follow. For example, ones
goals will influence what obligations seem important: Fairness
might be mo re important for being identi fied as a good leader
whereas being loyal might be more important for being identified
as a good friend (Everett et al. 2018). The social domain in ques-
tion will also shape the obligations that seem important (Fiske
1992). When it comes to obligations toward notions of equality
and merit, people may think that one should give rewards
based on merit in domains such as pay for work, but prefer equal-
ity in domains such as voting one vote per person. Cultures will
also dramatically vary in the extent to which they emphasize
moral values like honesty, fairness, kindness, and loyalty, leading
to different balances (e.g., Fiske 1992; Miller & Bersoff 1992).
Indeed, factors such as culture or socioeconomic status may
also influence childrens decisions (Choshen-Hillel et al., in
press; Rochat et al. 2009). Finally, what might make matters
even more complicated is that peoples intuitions about conflict-
ing obligations may change throughout the course of their devel-
opment, with older children believing it is good to overcome
moral conflict and younger children believing it is better not
even to have moral conflict in the first place (Starmans &
Bloom 2016). Future work should explore how cultural inputs
shape both the kinds of obligations that children have and how
they balance conflicting obligations as well as how these obliga-
tions may shift throughout the course of development.
In summary, we concur that obligations are important, but this
is just a starting point for understanding the rich tapestry of inter-
lacing obligations that human beings must traverse. Thus, we
applaud Tomasello for bringing these obligations to the forefront
and for outlining the impo rtance of mutualistic cooperation in
triggering social obligations. However, we think it is also time
to acknowledge the wide swath of obligations that all people
must face and the difficulties caused by having to navigate
between obligations that are as contradictory as they are compel-
ling. We thus propose that a wider framework is needed to
account for how children and adults bal ance their different alli-
ances and social obligations.
How does inequality affect our sense
of moral obligation?
Walter Sinnott-Armstrong
Philosophy Department, Duke University, Durham, NC 27708.
[email protected] https://sites.duke.edu/wsa/
doi:10.1017/S0140525X19002310, e87
Commentary/Tomasello: The Moral Psychology of Obligation 43
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Abstract
Tomasellos novel and insightful theory of obligation explains
why we sometimes sense an obligation to treat each other equally,
but he has not yet explained why human morality also allows and
enables much inequality in wealth and power. Ullman-Margalits
(1977) account of norms of partiality suggested a different source
and kind of norms that might help to fill out Tomasellospicture.
Tomasellos new and illuminating theory accounts for many other-
wise mysterious aspects of our human sense of obligation. In par-
ticular, humans (including children, but not apes) are motivated to
share rewards equally with (and only with) partners in joint inten-
tional collaborations, and they object to violations of this norm. He
writes, Most basically, as children participate in joint intentional
collaboration, they see that: (1) both participants are equal causal
forces in producing the mutually intended outcome; (2) both part-
ners could switch roles as needed; and, most crucially, (3) the stan-
dards of performance for each role (so-called role ideals, the first
social shared normative standards) are impartial in the sense that
they apply to anyone in that role (sect. 2.1.3, para. 4). Later
steps are then presented as scaled-up versions of the joint commit-
ments characteristic of joint intentional collaboration at the first
step of our account (sect. 2.2.2.2, para. 4).
This insightful picture does fit many interactions, including
those in cited experiments that Tomasello designed, but it is still
far from complete (no surprise!). As Tomasello notes (note 3),
children also interact with adults whom they are expected to
obey. This obligation to obey superiors does not seem to spring
from collaboration among equals. Moreover, collaborators are
not (1) equal causal forces when one works harder and produces
more. We might sense an obligation to show equal respect of some
kind to such collaborators, but they are usually not seen as deserv-
ing equal parts of the products of the collaboration. Furthermore,
partners often cannot (2) switch roles, such as when a quarter-
back (or a coach) cannot play lineman on an American football
team. And even when two people can play the same role, the
same standards do not always (3) apply to anyone in that role.
When teenagers volunteer to cook dinner, they are often not
expected to cook as well as their parents. My point is not only
that adults do not treat each other as equals when they misbehave
as in bullying, domination, and racism. In addition, children and
especially adults accept lots of inequality as morally permitted,
desirable, or even obligatory, as in unequal power relations
between bosses and employees, generals and privates, judges and
defendants, police and citizens, parents and children, and even
wealthy and poor citizens, in some cases. Equality is seen as oblig-
atory at some levels but not others.
Tomasello might try to explain these inequalities in moral
obligations in terms of collective agreements and commitmen ts,
which can lead to social norms and roles that are supp osed to cre-
ate special rights and obligations for some people that others in
the same group do not possess equally. However, not all of the
parties to these collective agreements are equal, and these roles
often do not seem to arise from collaborations between equals.
What collaboration between children and parents gives rise to
the obligation of children to obey their parents? And are under-
privileged groups really equal partners in the collective agree-
ments that give police power over them? And are employee and
employer equal when one accepts a job from the other or
makes laws governing such contracts? Tomasello is right to
bring up social norms and roles, but it is not clear how they fit
within his simple model of collaboration among equals or his
scaled-up account of objective obligation.
This problem does not refute Tomasellos central claims. It only
shows that he needs to add some explanation of inequalities in
obligations. One promising way to supplement Tomasellos theory
would draw upon Edna Ullman-Margalits unfortunately neglected
model of norms of partiality (Ullman-Margalit 1977). Very
roughly, the basic idea is that some (not all) norms arise from
negotiations among unequals in which privileged leaders use
their greater power and wealth to solidify and extend their per-
sonal advantages, while underprivileged subordinates hold out
for as much as they can get under the circumstances, even if
that is far less than equality. This origin in inequality and cultural
negotiation can explain certain features of those norms of partial-
ity that are hard to explain in terms of collaboration among equals.
One example (not endorsed by Ullman-Margalit but suggested
by others) tries to explain why obligations to help the needy
(whether or not they are not partners in collaborations) are gener-
ally seen as weaker than obligations not to cause harm. Although
some philosophers disagree, studies have shown that most people
judge killing a beggar to be worse (and to violate a stronger obliga-
tion) than failing to help a beggar even when that means letting the
beggar starve. This feature of our sense of obligation could be
explained if it arises from negotiations between unequals. The
rich and powerful discourage a strong sense of obligation to help
the needy, because they have much to lose and little to gain from
that obligation; but they encourage a strong sense of obligation
not to harm, because they are vulnerable to being harmed. They
can be killed just like a beggar, even if they have guards. And the
preferences of the rich and powerful shape our intuitions about
the relative strength of these obligations because the rich and pow-
erful control news sources, churches, governments, and other insti-
tutions that shape the sense of obligation in most cultures.
I am not at all sure that this story is accurate or succeeds in
accounting for this feature of our sense of obligation. My main
point is only that Tomasellos theory is limited and incomplete
until he adds some new element to account for unequal obligations
and also for peculiar features of our sense of obligation that might
have arisen from inequalities in power and wealth. Some story
about negotiation among unequals (as Ullman-Margalit suggested)
could fit that bill, although Tomasello might have a very different
explanation. In any case, I look forward to hearing how he explains
our sense of obligation in situations of inequality.
Cooperation and obligation in early
parent-child relationships
Ross A. Thompson
Department of Psychology, University of California, Davis, CA 956160-8686.
ra[email protected] https://psychology.ucdavis.edu/people/rathom
doi:10.1017/S0140525X19002474, e88
Abstract
Tomasellos moral psychology of obligation would be develop-
mentally deepened by greater attention to early experiences of
44 Commentary/Tomasello: The Moral Psychology of Obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
cooperation and shared social agency between parents and
infants, evolved to promote infant survival. They provide a foun-
dation for developing understanding of the mutual obligations of
close relationships that contribute (alongside peer experiences)
to growing collaborative skills, fairness expectations, and fidelity
to social norms.
Moral development theorists like Piaget (1932) and Kohlberg
(1969) argued for the uniquely generative qualities of egalitarian
peer relationships for the growth of moral understanding.
Influenced, perhaps, by their view, Tomasello has very little to
say about the relevance of parent-child interaction to the develop-
ing moral psychology of obligation. But whereas Piaget, Kohlberg,
and other traditional moral development theorists contrasted peer
cooperation with authority-oriented parent-child relationships,
contemporary researchers have a very different view of these rela-
tionships (Thompson 2012). Infants learn about cooperative
social interaction in the contexts of social play, feeding, and
other shared activ ities of joint intentionality within the family.
They expect parents to act consistently with their roles, and pro-
test when parents fail to do so (e.g., Adamson & Frick 2003). A
developing morality of obligation derives, in part, from the
mutual responsiveness of parents and children in relationships
of reciprocal cooperation.
It would be reasonable to expect that humans ultra-
coop erative nature woul d be manifested in early parent-child
interaction, especially because human infants are born more
dependent on the coope rative solicitude of their caregivers than
are other great apes. The species-typical preference of humans
for pursuing goals collaboratively cannot be viewed indepen-
dently of the conditions required for the survival of human
young. Infants helples sness contributes to the creation of the
social cradle (Carpendale et al. 2013) of cooperative social
inte ractions that contribute to their survival, especially in the
context of alloparenting that is likely to have characterized infant
care (Hrdy 2009). But t he social cradle is also likely to have made
infants exquisite ly attuned to the cooperative responses they
receive and observe in those around them because cooperative
encounters sensitize a helpless infant to whom they could trust
to provide reliable support. Understanding from whom coopera-
tive sol icitude wo uld be received and, by extension, who could be
observed coop erating with others is likely to have enabled infants
to direct their bids for support to appropriate adults (Chisholm,
in press).
This early develop ing attunement to cooperative relations
likely under lies the differential respons es of young infants to
observed helpers and hinderers argued by Hamlin (2013)
to be a pred icate to a moral sense. It is also a foundatio n to
secure or in secure attachment. Infants sensitivity to cooperative
relations changes, of cou rse, with psychological development.
We have argued, for example, that as toddlers acquire an aware-
ness of shared intentionality during the second year, they begin
to understand parental s ensiti vity as the adult sharing the tod-
dlers goals i n the situation, and they may extend this orientation
to third parties (Newton et al. 2016 ). This is, in Tomasellos
terms, the shared we in paren t-child in teraction extended to
another.
Another developmental transition in parent-child relationships
occurs when young children become capable of and are moti-
vated to reciprocate the cooperation they receive. Maccoby
(1984) and more recently Kochanska (2002) have argued that
parental socialization during this period is a process of inducting
the child into a system of reciprocity, manifested in the formation
of a jointly bindin g, reciprocal, and mutually responsive relation-
ship. In this relationship, young children are motivated to coop-
erate with parental requests and incentives not because of threat
or coercion but owing to the reciprocal obligations that close rela-
tionships entail and to maintain relational harmony. Considerable
research in the study of conscience development has tested this
view and shown, in several longitudinal samples, that when
early parent-child relationships were characterized by this mutu-
ally responsive orientation children subsequently showed greater
cooperativeness in parent-child interaction, exhibited greater
compliance in the parents absence, offered greater prosocial com-
pletions to incomplete stories, and showed a stronger sense of self
as a moral actor (see Kochanska et al. 2019). In Kochanskas view,
early parent-child relational experience characterized by shared
reciprocity, including felt mutual obligation, launches young chil-
dren on a developmental pathway that includes greater coopera-
tive conduct and responsiveness to shared responsibilities
outside the family.
Early attunement to cooperative relations manifests also in
young childrens development of secure attachment in the context
of sensitive care. Just as a mutually responsive orientation is not
guaranteed in early parent-child relationships, so also parental
sensitivity is not necessarily ensured in any infants experience.
Thus distinguishing which parental (and other alloparental) part-
ners could be counted on for cooperative support is important for
the security felt within those relationships and also to the devel-
oping readiness to seek and establish similar relationships of
shared agency with others. This may be one reason why the secur-
ity of attachment is longitudinally associated with many elements
of cooperative obligation that Tomasello discusses, such as coop-
eration with adults and peers, social problem-solving and
conflict-avoidance with peers, as well as fidelity to social norms
and fairness sensitivity in conscience development (Thompson
2019). Although individual differences in the readiness to estab-
lished shared agency with another are not a focus of
Tomasello
s analysis, individual differences in the human sense
of obligation warrants systematic study. Interestingly, in an
essay written at the conclusion of World War II and thus two
decades before the publication of Attachment, Bowlby (1946) dis-
cussed research documenting the feeling of Weness evoked by
childrens participation in democratically structured groups, by
contrast with the feeling of Iness evoked by participation in
autocratically directed groups. His essay urged governments to
devote attention to the developmental conditions giving rise to
human cooperation and conflict management.
Taken together, the young children studied in the evocative
studies described by Tomasello do not arrive at cooperative inter-
actions of joint intentionality with peers and adults de novo. Their
capacities for establishing the weness of collaborative activity,
mutual obligation, and in-group solidarity are also established
in the attunement to cooperative relations and the mutual obliga-
tions of relationships in the family. Tomasellos moral psychology
of obligation would be developmentally deepened by consider-
ation of a young childs long experience of parent-child interac-
tions that provide foundations to a developing sense of social
obligation that precede and are concurrent with the developmen-
tal processes he so evocatively discusses. The unique achievements
arising from the egalitarian context of peer relationships build on
those occurring in the family.
Commentary/Tomasello: The Moral Psychology of Obligation 45
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Authors Response
The many faces of obligation
Michael Tomasello
a,b
a
Max Planck Institute for Evolutionary Anthropology, 04103 Leipzig, Germany
and
b
Department of Psychology and Neuroscience, Duke University, Durham,
NC 27708-0086
doi:10.1017/S0140525X19002620, e89
Abstract
My response to the commentaries focuses on four issues: (1) the
diversity both within and between cultures of the many different
faces of obligation; (2) the possible evolutionary roots of the
sense of obligation, including possible sources that I did not con-
sider; (3) the possible ontogenetic roots of the sense of obliga-
tion, including especially childrens understanding of groups
from a third-party perspective (rather than through participa-
tion, as in my account); and (4) the relation between philosoph-
ical accounts of normative phenomena in general which are
pitched as not totally empirical and empirical accounts such
as my own. I have tried to distinguish comments that argue
for extensions of the theory from those that represent genuine
disagreement.
As many before me, let me begin by thanking the commentators
for their thoughtful comments and by apologizing to them for not
being capable of responding equally as thoughtfully to all 32 com-
mentaries in one coherent piece in return. I group my responses,
insufficient though they be, around four main topic areas. The
first three topics revolve around the three diachronic time frames
involved: evolution/phylogeny, development/ontogeny, and cul-
tural evolution. I deal with these each in turn, although in a dif-
ferent order. I then address, fourthly, some philosophical issues
raised by commentators who have their doubts that a fully natu-
ralistic explanation of obligation (or any other type of normativ-
ity) is possible at all.
R1. Variation within and between cultures
A number of commentators pointed out the myriad complexities
of the h uman se nse of obligation in its mature form as it oper-
ates in a modern culture, and this is indeed a dimension of
things that I mostly neglected in my target article. I suggest
that there are two aspects to the issue: (1) the participation of
individuals in a collective commitment to the cultural group,
and (2) the participation of individuals in various roles to
which the culture assigns various normative obligations. I
focused mostly on the fir st, whereas the commentators have
noted m y neglect of the second.
Maranges, Baumeister, & Vohs (Maranges et al.) emphasize
that individuals become members of cultures by sharing in its
particular doxa, its shared and implicit presuppositions and col-
lective understandings about the way things are. Kish Bar-On
stresses that indivi dual members of cultures share commitments
and obligations not just to one another but to the cultures shared
ideals, values, and moral principles. Dunning stresses the glue
that is provided among group members, even in-group strangers,
by a sense of mutual trust. And this was my central theoretical
point at the second step of my story: At some point in human
evolution and human ontogeny, individuals begin to feel a part
of, even to identify with, a social structure larger tha n themselves,
and without this feeling of solidarity/trust and shared identity
there would be no feeling of obligation. As I asked rhetorically:
would we feel a se nse of obligation to invading Martians?
Nevertheless, many commentators pointed out that things are
much more complicated than this. Clark, Earp, & Crockett
(Clark et al.) point out that, within a modern human culture,
individuals feel solidarity with and identify with other individuals
and groups based on many different types of social relations.
Thus, in communal relations of interdependence we feel obliga-
tions to all who contribute in all aspects of life, whereas in
exchange relations the obligations to a buyer or seller, for example,
are quite contained and transitory. Their commentary is a beau-
tiful elaboration of the different forms that obligation can take in
complex societies in which we relate to one another in many com-
plex ways. Franks & Stewart echo this theme but emphasize that
modern humans participate in many different types of groups
for example, religious, political, and ideological and these
often have conflicting obligations with which individuals must
deal. They suggest that this complexity may have been there
from the beginning, contributing to the evolution of the human
sense of obligation, especially as different hunter-gatherer groups
interacted with one another across space and time. Anderson,
Ruisch, & Pizar ro (Anderson et al.) emphasize that complexity
also ensues from the distinctions that humans make between pre-
scriptive (what one should do) and proscriptive (what one should
not do) obligations, as they arise in the variegated social relation-
ships and groupings characteristic of a modern culture.
Sinnott-Armstrong points out that many of our obligations are
to people with whom we actually have competitive relationships
and/or asymmetrical power relationships: for example, employer
and employee. He proposes paying attention to norms of partial-
ity in which the stronger partner uses her strength to forge a
favorable social norm with a weaker partner who has little choice.
But, following Gilbert, I would argue that the parties creating a
social norm still have some obligation to uphold it, even if
other considerations (e.g., the more powerful partners selfish
behavior) lead one of them, in the end, to break it. If I promise
you to do something, and later find out that it would blow up
the world, I should not do it; but I still need to show respect by
informing you that I am breaking my promise.
Killen & Dahl argue that the focus on cultural conformity not
only misses interesting and important group diversity, but actu-
ally misrepresents human morality and its accompanying sense
of obligation. Their point is that human morality is decidedly
not about group conformity, but rather about the individual living
in accordance with her own ideals even if those conflict with those
of the group. And even when an individual does accept some cul-
tural norm as legitimate, it is she who judges whether it is or is
not legitimate from her perspective. Hirsh, Shteynberg, &
Gelfand (Hirsh et al.) echo some of these same concerns, point-
ing out that individuals in modern cultural groups have many
conflicting demands from their many different roles and partici-
pation in different types of groups (as argued above), and that the
essence of morality is resolving these confli cts. Shaw &
Choshen-Hillel also emphasize the many conflicts of obligation
inherent in life within a cultural group, for example, to avoid
46 Response/Tomasello: The moral psychology of obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
harm to individuals but to be fair to everyone. They opine that
obligations are important, but this is just a starting point for
understanding the rich tapestry of interlacing obligations that
human beings must traverse.
This general point is one with which I agree wholeheartedly
(even if I did not emphasize it in the target article). In a previous
publication (Tomasello 2016a, p. 115), I argued that the process
by which individuals construct their moral identities within a cul-
ture is precisely by attempting to resolve conflicting demands:
Moral beings can never escape the feeling of obligation to
make principled decisions when the norms of their group do
not apply in a straightforward manner or, more problematically,
when they conflict with one another. Individuals must always in
some sense freely assent to and identify with the moral decisions
that they make. The key is that the individual constructs a moral
identity and thereby takes responsibility for her decisions in adju-
dicating among multiple obligations. Olbrich in fact believes that
we can dispense altogether with Darwalls notion of external
demands coming from a partner or compatriot as an essential
part of obligation. He believes that such demands are not of the
essence of the matter, but are merely a second-order compliance
mechanism. The essence of the matter is that the individual
identifies directly with the joint commitment she has made.
This focus on the positive side of obligation is also emphasized
by Beel er-Duden, Yucel, & Vaish (Beeler-Duden et al.), who
point out that we have emotional support, such as the emotion
of gratitude, for fulfilling our obligations because we want to
(not just because we have to). This is an extremely interesting
point about which I have speculated in the past but which is
not represented in the target article: People operate from aspira-
tional motives to live up to some very high standards (typically
somehow higher than is normative in the group, e.g., because
of some religious aspirations), as well as feeling an obligation to
conform to the standards even if they do not want to at some per-
sonal level. The relation between obligational and aspirational
relations to cultural norms and standards is an extremely interest-
ing question for future research.
In addition to the fact that individuals must somehow navigate
a social terrain full of various and possibly conflicting obligations,
both Bender and Buchtel emphasize that, in different cultural
groups, obligations can take much more varied forms than we
Western scientists ever consider. Bender documents examples
from non-Western cultures of social structures that generate obli-
gations of the type we do not normally consider in Western dis-
cussions. Buchtel notes, in particular, that in some East Asian
cultures echoing the point of the previous paragraph it is
quite common for individuals to take a more aspirational attitude
to their obligations, and feel joy in fulfilling them. In my target
article, I had a brief section on the lack of cross-cultural research,
and these commentaries serve to emphasize that lacuna even
more strongly.
R2. Phylogenetic origins of obligation
Kaufmann claims that chimpanzees group huntin g of monkeys
is fully collaborative in a human-like sense. As evidence, she
cites Bo eschs description of the process in terms of a share d
goal with individual roles (like the players on a soccer team).
But one can describe the plants, streams, soil, and microorgan-
is ms of an ecosystem as playing roles in that ecosystem as well;
th at does not mean, however, that they understand themselves
to be playing such ro les. The question is how the c himpanzees
understand what they are doing. Other researchers who have
observed chimpanze es hunting monkeys do not describe it
using shared goals an d individual roles, and I myself have
done much experimental research trying to pin down pieces
of the p rocess. Clearly, what chimpanzees are doing is collabo-
rative in a ge neral sense, and clearly it was the evolutionary pre-
cursor of h umans more complex forms of col laboration. But it
is missing key elements both in terms of coordination of the
act ivity via joint goals and social/communicative coordination,
and in terms of dividing the spoils via notions of fairness
(Tomasello et al. 2012). Kaufmann goes on to compare the
chim panzee version favorably to modern-day hunter-gatherers.
But when hum an hunter-gatherers are h unting, they do such
things for their partners as give them weapons, clear trails for
them, share information with them, carry their child for them,
repair their weapon for them, instruct them in best techniques,
and so forth (Hill 2002). There are no reports of chimpanzees
helping one another in their group hunting in any way. This
tells you that the c ooperative structure of the huma n version
is somehow different.
Reddy & Wellman believe that the ur-context for the evolu-
tion of a sense of obligation is the mother-child relationship.
They point out that when a child screams, it is in effect coercive
because the mother would much rather stay doing what she is
doing; she is obliged to react. But such maternal behavior is wide-
spread in virtually all mammals, and so the question arises why
the full-fledged sense of obligation arose only in the primate lin-
eage leading to humans. Humans closest living relatives, chim-
panzees and bonobos, engage in group hunting of various small
mammals (see above), and the proposal here is that this is the spe-
cial context that took huma ns beyond general mammalian mater-
nal relationships. In Reddy & Wellmans formulation,
proto-obligatory motivations and expectations may begin with,
X helps me because X is my mother/I must help X because X
is my offspring. As individuals in group-living species grow up,
this understanding may develop into because X is my friend
and because X is Ys daughter.’” Perhaps. But I simply do not
see how this general reciprocity relation contains the seeds of
an individual who sees that others have legitimate claims on her
by virtue of their mutual interdependence.
AndthisisinmanywaysthesameproblemIhavewiththe
analysis of Rotella, Sparks, & Barclay (Rotella et al.). They
basically propose an account of the origins of a sense of obliga-
tion in terms of reciprocity. I have argue d at length (in Ch. 2 of
Tomasello 2016a) that reciprocity cannot be the psychological
basis of human morality, normativity, and obligation. Their
argument is the f eel ing of obligation ar ises anytime that failure
to complete the obligated action would result in negative social
consequences (p. 42). But I would claim that the feeling of obli-
gation can arise only if those negative social consequences are of
a particular type. Yes, concern for reputation would be an
important step along the way, and, as noted in the article,
humans have a con cern for having a cooperative reputation
that othe r great apes do not seem to have. This is a key starting
point. But to get to obligation, I do not believe that concern with
what they think of me is suf fici ent because it doe s not confer
the legitimacy needed for a sen se of oblig ation: I agree wi th them
that I should do X, so it is the evaluatio n of we that concerns
me. The standard s that we have agreed to are what concern me.
In Rotella et al.s analysis, is hard to see why I should feel the
need to apologize or make an excuse to someo ne when I do
not fulfill my obligation, or else to feel guilt y on my own. This
Response/Tomasello: The moral psychology of obligation 47
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
is the special force of obligation beyond ne gative social
consequences.
R3. Ontogenetic origins of obligation
Some commentators with a background in developmental psy-
chology had different proposals for the cradle of childrens
sense of obligation. The two main ones were (1) parent-child
interactions and (2) the understanding of groups from a third-
party perspective (rather than from participation). These will
each be treated in turn, followed by treatment of a few other pro-
posals from a developmental perspective.
R3.1. Parent-child relations as basic
Thompson criticizes the view that childrens earliest sense of obli-
gation emerges from their more-or-less egalitarian interactions
with peers and, in some contexts, with adults. Rather, he believes
that the key is infants earliest interactions with their caregivers,
as affectively laden relationships cemented by obligations.
Thompson argues that early experiences of cooperation and
shared social agency between parents and infants provide a
foundation for developing understanding of the mutual obligations
of close relationships, which can then be extended later to others.
Carpendale & Lewis have a similar view, elaborated in more detail
as follows: Moral obligation is not the result of realizing that others
are equals and therefore should be treated with respect. Instead it is
a natural outcome of mutual affection and understanding. This car-
ing and concern for others is what later develops into a sense of
obligation, first to those close and, later, extended to others.
Although this is clearly a reasonable view, and has the virtue of
beginning with childrens first important social relations, in the
end I do not believe it can get us to obligation.
The main issue is that the sense of obligation is mainly self-
regulatory. It is another voice alongside of humans most
basic and natural tendencies for social action and interaction. In
my opinion, childrens earliest social relations with mothers and
other caregivers are forming the foundation for their primary
skills and motivations for interacting with others in all kinds of
ways, both cooperative and otherwise. The sense of obligation
arises from an executive level of consideration that evaluates the
social options and puts its finger on the scale for certain ones
of them (particularly in cont exts of joint agency in which we
are evaluating me). But this is pot entially an empirical question.
Marshall reports a study (Marshall et al. in preparation) in which
5-year-old and older children expressed the belief that parents
have oblig ations to their children (they have to do things for
their children that others do not). But as Marshall herself notes,
these are older children, and they would already have a group-
minded understanding of the role-obligations inherent in various
social relations in their culture, including parentchild relations.
My view would be that infants and young children understand
parentchild social relations in terms of basic emotional and
social processes of mutual affection and reciprocity, but without
a sense of obligation. Many mammalian mothers care for their
infants and young children as assiduously as do human caregiv-
ers, but neither they nor their offspring come to an understanding
of obligation (as far as we know). So my prediction would be that
if Marshalls study were done with 2- to 3-year-old children, they
would not think that parents have special obligations to their chil-
dren, above and beyond their natural social affections.
R.3.2. The understanding of groups as basic
Recent studies have found that, in looking at time studies, human
infants have certain expectations about how members of a group
(even if they are represented by shapes on a screen) behave.
Children 3 years of age and older have intuitive theories about
social groups independent of their own participation in them,
and they can even speak coherently about the normative relations
of members: things they should or must do for one another.
Several commentators, therefore, expressed the view that perhaps
childrens early expectations and intuitive theories about social
groups in contrast to their direct participation in collaborative
social interactions might be the developmental cradle of child-
rens early understanding of how individuals, including them-
selves, are obligated to one another.
Rhodes characterizes my view involving childrens direct par-
ticipation in social interactions as
inside-out. That is, they first
feel a sense of obligation to their collaborative partners, and then
generalize outside that to their and other social groups more
broadly. She contrasts this with her own outside-in view that
childrens understanding of obligations develops from their
understanding of social groups independent of their own partici-
pation in them. Chalik expresses a similar view, focusing on
childrens intuitive theories of social groups. Both commentators
note that it is possible that both childrens direct collaborative
interactions and their intuitive understanding of social groups
contribute to the process, although, if true, the relation of these
two processes remains totally unexplored. The possi bility that
these two sources develop in parallel is an interesting and plausi-
ble one, but for the moment I remain skeptical that the infant ver-
sion is truly group-minded. More likely, in my view, the kinds of
outside-in judgments about the obligations that group members
have to one another that 3-year-old children make are not contin-
uous with infants non-normative expectations about the behavior
of similarly shaped dots on a screen. Instead, my proposal would
be that 3-year-olds judgments reflect a maturationally structured
understanding that first emerges at around that age: a kind of
group-mindedness that encompasses both themselves in their
own groups as well as others. This is clearly an extremely interest-
ing and provocative question for future research.
In a somewhat similar vein, Liberman & Du Bois criticize my
account for its almost exclusive focus on the developmental
period comprising several years on either side of the third birth-
day. They cite a good bit of the infant literature on childrens
expectations and preferences toward experimental stimuli based
on their apparent group status. But, again, the continuity of
these nonnormative expectations and preferences with childrens
later sense of moral obligation is at this point unexamined.
They go on to point out, in agreement with some of the culture
theorists discussed above, that working out obligations in social
interactions with others is a lifelong process that involves under-
standing not only other individuals but also the social norms of
the group (at whatever level of analysis). Bartsch provides some
very interesting developmental analyses of young children in con-
versation with adults and other children focused on moral issues
and obligation. It is undoubtedly in such discourse interactions
that young children begin the process of understanding how to
interact with others cooperatively in more complex ways across
the lifespan.
R.3.3. Other views
In contrast to accounts focused on childrens intuitive theories of
social groups, Corbit & Moore focus, as I do, on interactions in
48 Response/Tomasello: The moral psychology of obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
which the child herself participates. They argue that my account
does not really specify the kinds of interactions through which
young children gain the abilit y to form a joint agency with others
in the first place. They argue that infants earliest triadic interac-
tions with others around objects provide the requisite experiences
whereby the infant learns to coordinate first-person perspective,
second-person perspective, and the object on which they both
are focused. In my view, this is a reasonable characterization,
but, based on the comparative work with great apes even
those raised in rich interactions around objects with humans
I believe we must recognize a role for the maturation of capacities
for shared intentionality that structure these early learning pro-
cesses. Only if one can form a joint goal with joint attention, in
my view, is it possible to take different perspectives in the first
place; otherwise we are just doing and seeing different things.
So, I am not convinced that infants are learning to coordinate per-
spectives before their capacities for joint intentionality mature.
Corbit & Moore also cite evidence supporting the view that acting
together toward a joint goal even if that goal is not obtaining
resources leads children to distribute resources more fairly
with others.
Kalish introduces the notion of a reason for action and notes
that childrens earliest moral statements belie a kind of objective
notion: the reason my sister is opening the box is because there
is candy in there. But, he argues, this is a rationality of individual
action. When the child must coordinate with a partner toward a
shared goal, now the reasons must become more person-specific
involving the beliefs and attitudes of the partners vis-à-vis one
another. He notes that if a partner in the collaboration misbe-
haves, he is obligated to give the other a reason and citing the
obligation is an effective way of restoring coordination. I remind
you of the reason, and expect you to adjust your behavior in light
of it. This is an elegant way of construing the situation, because,
in my view, while individuals behavior is driven by beliefs and
desires, reasons only come into existence as kind of self-regulatory
mechanisms in shared intentionality interactions in which one
individual is obligated to the other already. Rakoczy notes a num-
ber of ways in which my account conflates or at least fails to
keep separate childrens sense of an intentional stance, a
group stance, a moral stance, and shared intentionality. He very
articulately illustrates how even a single interaction may instanti-
ate these different stances and capacities such that, over develop-
mental time, they become more distinct aspects of human social
psychological functioning.
Li, Pesch, & Koenig extend the analysis of obligation in
extremely interesting ways to testimonial exchanges and note the
various ways that children holds others accountable evincing a
sense of obligation epistemically.
R4. Whence normativity?
Four of the philosophers who have provided commentaries are
those upon whose work I have drawn most deeply and directly
to construct concepts of collaboration that are adequate for
describing developmental changes in young childrens ability to
cooperate with others across the first years of life. It is gratifying
that they all seem to believe that although my account is mis-
guided, it is at least worthy of criticism. The most basic issue con-
cerns the very possibility of a naturalistic account of normative
phenomena, including obligation.
Bratmans(2014) account of shared intentional activities is
mainly instrumental, with no sense of obligation among partners:
An adult and child can play with the ball together, and The child
can reason instrumentally concerning this jointly intended end of
playing together without thinking that she owes it to the adult to
give him the ball. Pettit thus says that Bratman offers a norma-
tively austere account of how joint action may materialize. In
contrast, again according to Pettit, Gilberts account is norma-
tively richer than Bratmans, because it presupposes that the peo-
ple involved in the joint action have mastered a normative
concept: that of a joint commitment. And, according to
Gilbert herself, The general notion of commitment at issue is
normative, rather than psychological. Darwall concurs: obliga-
tion is a normative, rather than a psychological (or sociological)
phenomenon. Most psychologists, myself included, find it diffi-
cult to comprehend what obligation and other normative phe-
nomena could possibly be if not psychological (or sociological)
phenomena. For sure, obligation and other normative phenomena
go beyond individual psychology; but that is precisely why we
need a shared intentionality account.
Perhaps because of this non-naturalistic conception of obliga-
tion and other normative phenomena, all four philosop hers seem
to agree that a naturalistic account going from Bratman-like,
instrumentally based collaboration to Gilbert-like, normatively
based collaboration is problematic. Pettit says I have a hard
choice. If I define joint action à la Bratman, then I cannot get
to a normatively richer version involving obligation without
some kind of magical leap. If I define joint action à la Gilbert,
then I build obligation into the definition. Bratman makes a sim-
ilar argument. He claims that collaboration itself in his thin
version does not lead to the sense of obligation to ones partner,
but rather obligation arises from joint commitments in Gilberts
sense, comprising a web of assurances between individuals
that is only contingently linked to collaboration: So what is
undergirding [obligation] involves a crucial element that is sepa-
rable from intentional collaborative activity.
But my phylogenetic and ontogenetic account is intended pre-
cisely to get us from Bratman-like collaboration to Gilbert-like
collaboration as cemented by a joint commitment involving obli-
gations. The key is not to think of normative phenomena in abso-
lutistic terms but rather as graded. Joint commitments as
collaboratively created forms of collaborative self-regulation
can be weaker or stronger based on several factors. Consider a
recent experiment modelled on the stag hunt from game theory
(Siposova et al. 2018). Children were in a situation in which
they could only get a large reward if they collaborated with an
adult partner. As they were busy collecting small rewards (hare),
the opportunity to collaborate for the large reward (stag) suddenly
appeared at a distance. In one condition, the adult excitedly
looked to the child with wide eyes and then to the stag in the dis-
tance without explicitly proposing any kind of joint commitment.
The idea was that the adult would just be making it clear that she
had just seen the stag and knew that the child had seen the stag
and knew that the child had seen her seeing the stag, et cetera
that is, they had common ground knowledge that the stag
was now available. But no one explicitly suggested a joint commit-
ment. Nevertheless, not only did the child commit to pursuing the
stag, but if the adult slacked off, the child quite often castigated
her normatively. Our interpretation was that children understood
that it was in their common knowledge with the adult that they
depended on one ano ther for collaborative success and that
they both knew that the stag was present: which, it turns out, is
sufficient to create a mutual sense of obligation. If we both
know together, in common ground, that you need help and that
Response/Tomasello: The moral psychology of obligation 49
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
I am in a position to provide it (at little cost), I feel the pressure of
obligation.
But clearly this is less of a joint commitment than if the
adult says to the child Lets work together, and the child
responds Okay. In that case, the joint commitment is proposed
and accepted explicitly and publicly. In the analysis of Pettit
(2018a), the explicitness and publicity provide stronger assurances
because they foreclose the possibility of excuses like I didnt
know you were counting on me and/or I changed my mind
[without excuse]. The point is that joint commitments and
their associated obligations can vary in strength based on such
things as how certain the participants are about the intentions
of the other and how important ones contribution is to joint suc-
cess. Thus, one can imagine a situation in which one makes a
joint commitment of one type or another, but ones contribution
is only minimally helpful; for example, I commit to you to join
you at a party, but as only one of 30 people, and as only an
acquaintance, I know that you are not depending on me that
strongly, so breaking the commitment is not that big of a deal;
my sense of obligation is weaker as a result. If joint commitments
and their associated obligations can vary in strength based on sev-
eral factors like certainty of the commitments content and its
social importance, then one can imagine that early humans and
young children begin with Bratman-like instrumental collabora-
tion, and then such things as mutuality looks to up the ante in
terms of commitments and obligations, and then explicit proposals
and acceptances make the web of assurances stronger and more
certain. This kind of gradualistic account makes a naturalistic
explanation of the emergence of normative phenomena, including
the human sense of obligation, at least a bit more plausible.
Supportive of this idea, Kachel and Tomasello (2019) reported
an experimental demonstration that implicit joint commitments
lead to a weaker sense of obligation than do explicit ones.
My naturalistic account has two other key concepts as well,
and attention to these might make the account more plausible
to these and other philosophers. The first is borrowed from
Nagel (1970b), and that is the idea that seeing other people as
in some sense equivalent to myself (I am only one among
many other individuals) provides a kind of cognitive, not motiva-
tional, basis for a sense of equal deservingness. I might want more
of the spoils myself, and I might even take them, but I certainly do
not feel that I deserve them because we (self and other) are, in all
important respects, the same in this context. I feel obliged to treat
you as you deserve to be treated. The second concept is borrowed
from Korsgaard (1996), and that is the idea that the notion of
obligation is tied to my cooperative or moral identity. I, as a mem-
ber of a we community, judge people normatively. And I can turn
this on myself and judge myself from the perspective of that we. It
is simply an empirical fact that it is important to human beings that
they can view themselves, from the perspective of we in the com-
munity, positively; they want to be an integral and contributing
member of the we, and indeed they feel obliged to do so. This
also lends legitimacy to the social demands that one feels from oth-
ers. I reiterate these two points to emphasize that my account is not
simply that the sense of obligation arises from individuals solving a
puzzle together instrumentally. It arises from a cooperative way of
life, which shapes human understanding of their relation to others
and their need to form plural agencies in their quest to survive and
thrive in their social group.
One final point on this general topic. Darwall takes issue with
the proposal that obligation is a fully psychological phenomenon.
He argues that it is irreducibly normative and moral, not
empirical. He does not believe that my account in which children
come to feel a sense of obligation solely from their interdependent
collaborations with equally deserving partners with whom they
feel a sense of we is sufficient. He thinks that the normative
sense of obligation presupposes something less of this world:
not an empirical we, but an ideal we.
I do not disagree with
this, on one level, and indeed I said in my target article that the
larger cultural group (at the second step) was not just a finite col-
lection of individuals but everyone who would be one of us, thus
tying the normative force to a kind of idealized characterization of
the group with which I identify. Nevertheless, I do not see what
Darwall could possibly mean by the claim that Although the
sense of obligation is psychological, what it is a sense of is decid-
edly not. The sense of obligation is a sense of what I should do to
comport with the mutual understanding that my partners and I
have about how someone in my position should treat others.
What is not psychological about that?
R5. Conclusion
Reading and responding to 32 commentaries on ones best efforts
at a coherent theoretical account of something, anything, is a
humbling experience. There exist so many different perspectives
and valuings in the intellectual community that reads and profits
from this journal. We in this community will make progress
only if each of us feels as legitimate a kind of we > me sense of
obligation to take all of these different perspectives and valuings
seriously and, perhaps, to make improvements as a result.
I believe that to make further progress on the questions I have
raised, my account needs to be modified and improved in the fol-
lowing ways:
We need to integrate humans various normative attitudes,
including the sense of obligation, with their more basic social
relations, especially those that precede them in evolution and
development, such as parent-child relations and perhaps friend-
ships as the initial and most basic forms of human sociality.
We need to identify the many faces of obligation as it manifests
in the many different social contexts and social roles in a mod-
ern society. Moreover, we need to recognize that there may be
different forms of obligation in different societies with different
social structures and arrangements and seek to identify those.
In terms of ontogeny, we currently have no good account of
how childrens understanding of social partnerships and
groups that they derive through participation in them are
related to their understanding of social partnerships and
groups that they derive through observation of others (from
a third-party perspective). This is a challenging, but ultimately
empirically tractable, question.
Finally is the issue of how far we can go in our understanding of
normative attitudes, including the sense of obligation, empiri-
cally. From its beginnings, philosophy has recognized a kind of
ideal world that is to some degree and in one way or another
independent of (scientific) observation and experience. Applied
to the current case: ought cannot be explained in terms of is.
But I would argue that the human sense of ought is a
psychological phenomenon capable of scientific explanation,
and so the question is whether there is still something left
over unexplained. Of course, no explanation of obligation,
scientific or otherwise, can tell us what we ought to do. But we
50 Response/Tomasello: The moral psychology of obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
can describe and explain the processes by which people come to
feel that they ought and ought not to do certain things, without
leaving out of account any supposed non-empirical aspects.
In any case, one of the surprises I had in writing this target article
was how little empirical work there was on obligation. I am hope-
ful that the current exchange will lead more scientists and philos-
ophers to investigate this interesting and centrally important
human phenomenon from as many different perspectives as
possible.
References
[The letters a and r before authors initials stand for target article and response
references, respectively]
Adams, R. (2002) Finite and infinite goods: A framework for ethics. Oxford University
Press. [DO]
Adamson, L. B. & Frick, J. E. (2003) The still face: A history of a shared
experimental paradigm. Infancy 4(4):45173. doi:10.1207/S15327078IN0404_01 [RAT]
Aktipis, A., Cronk, L., Alcock, J., A yers, J. D., Baciu, C., Balliet, D., Boody, A. M., Curry,
O. S., Krems, J. A., Muñoz, A., Sullivan, D., Sznycer, D., Wilkinson, G. S. & Winfrey, P.
(2018) Understanding cooperation through fitness interdependence. Nature Human
Behaviour 2(7):429. [AR]
Ames, R. T. & Rosemont, H. J. (2014) Family Reverence (xiao ) in the Analects:
Confucian role ethics and the dynamics of intergenerational transmission. In: Dao
companion to the Analects, ed. A. Olberding, pp. 11736. Springer. [EEB]
Angle, S. & Slote, M. (2013) Virtue ethics and Confucianism. Routledge. [EEB]
Anscombe, G. E. M. (1958) Modern moral philosophy. Philosophy 33(124):119. [EEB]
Aquino, K. & Reed, I. I. (2002) The self-importance of moral identity. Journal of
Personality and Social Psychology 83(6):1423. [BF]
Arsenio, W. F. & Ford, M. E. (1985) The role of affective information in social-cognitive
development: childrens differentiation of moral and conventional events. Merrill-
Palmer Quarterly 31(1):117. https://doi.org/10.1088/0143-0807/28/3/011 [SB-D]
Axelrod, R. (1984) The evolution of cooperation. Basic Books. [PP]
Bakken, B. (2000) The exemplary society: Human improvement, social control, and the
dangers of modernity in China. Oxford University Press. [EEB]
Balliet, D., Tybur, J. M. & Van Lange, P. A. (2017) Functional interdependence theory: An
evolutionary account of social situations. Personality and Social Psychology Review 21
(4):36188. [AR]
Barclay, P. (2013) Strategies for cooperation in biological markets, especially for humans.
Evolution & Human Behavior 34(3):16475. [AR]
Barclay, P. (2016) Biological markets and the effects of partner choice on cooperation
and friendship. Current Opinion in Psychology 7:3338. [AR]
Barclay, P. & Lalumiere, M. L. (2006) Do people differentially remember cheaters?
Human Nature 17(1):98113. [RAA]
Barclay, P. & Van Vugt, M. (2015) The evolutionary psychology of human prosociality:
adaptations, mistakes, and byproducts. In: Oxford handbook of prosocial behavior,
ed. D. Schroeder & W. Graziano, pp. 3760. Oxford University Press. [AR]
Barclay, P. & Willer, R. (2007) Partner choice creates competitive altruism in humans.
Proceedings of the Royal Society B: Biological Sciences 274(1610):74953. [AR]
Bar-Haim, Y., Ziv, T., Lamy, D. & Hodes, R. M. (2006) Nature and nurture in own-race
face processing. Psychological Science 17(2):15963. https://doi.org/10.1111/j.1467-
9280.2006.01679.x. [LC]
Barresi, J. & Moore, C. (1996) Intentional relations and social understanding. Behavioral
and Brain Sciences 19(1):10722. doi:10.1017/s0140525X00041790. [JC]
Bartsch, K. & Wellman, H. M. (1995) Children talk about the mind. Oxford University
Press. [KB, CK]
Baumard, N., André, J. B. & Sperber, D. (2013) A mutualistic approach to morality.
Behavioral and Brain Sciences 36(1):59122. [aMT]
Baumeister, R. F. (2005) The cultural animal: Human nature, meaning, and social life.
Oxford University Press. [HMM]
Baumeister, R. F. Ainsworth, S. E. & Vohs, K. D. (2016) Are groups more or less than the
sum of their memb ers? The moderating role of individual identification. Behavioral
and Brain Sciences 39:e137. doi:10.1017/S0140525X15000618. [HMM]
Baumeister, R. F., Maranges, H. M. & Vohs, K. D. (2018) Human self as information
agent: Functioning in a social environment based on shared meanings. Review of
General Psychology 22(1):3647. [HMM]
Begus, K., Gliga, T. & Southgate, V. (2016) Infants preferences for native speakers are
associated with an expectation of information. Proceedings of the National Academy
of Sciences 113(44):12397402. [ZL]
Begus, K. & Southgate, V. (2012) Infant pointing serves an interrogative function.
Developmental Science 15(5):61117. [PHL]
Beller, S. (2008) Deontic norms, deontic reasoning, and deontic conditionals. Thinking
and Reasoning 14:30541. [AB]
Beller, S. (2010) Deontic reasoning reviewed: psychological questions, empirical findings,
and current theories. Cognitive Processing 11:12332. [AB]
Beller, S. (2012) Human deontic reasoning in the deontic square. In: The square of oppo-
sition: A general framework for cognition, ed. J.-Y. Beziau & G. Payette, pp. 47184.
Peter Lang. [AB]
Beller, S., Bender, A. & Kuhnmünch, G. (2005) Understanding conditional promises
and threats. Thinking and Reasoning 11:209
38. [AB]
Beller, S., Bender, A. & Song, J. (2009) Conditional promises and threats in Germany, China,
and Tonga: Cognition and emotion. Journal of Cognition and Culture 9:11539. [AB]
Bender, A. (2007) Changes in social orientation: Threats to a cultural institution in
marine resource exploitation in Tonga. Human Organization 66:1121. [AB]
Bender, A. & Beller, S. (2019) The cultural fabric of human causal cognition. Perspectives
on Psychological Science 14:92240. [AB]
Bender, A., Kägi, W. & Mohr, E. (2002) Informal insurance and sustainable management
of common-pool marine resources in Haapai, Tonga. Economic Development and
Cultural Change 50:42739. [AB]
Benioff, D. & Weiss, D. B. (Writer) (2012) A man without honor [Episode 17]. In:
David Benioff & D. B. Weisss (Executive Producers), Game of Thrones. Home Box
Office. [AS]
Berg, J., Dickhaut, J. & McCabe, K. (1995) Trust, reciprocity, and social history. Games
and Economic Behavior 10(1):12242. [DD]
Berscheid, E. & Ammazalorso, H. (2001) Emotional experience in close relationships. In:
Blackwell handbook of social psychology: Interpersonal processes, ed. G. J. O. Fletcher &
M. S. Clark, pp. 30830. Blackwell. [MSC]
Bian, L., Sloane, S. & Baillargeon, R. (2018) Infants expect ingroup support to override
fairness when resources are limited. Proceedings of the National Academy of Sciences
115(11):270510. https://doi.org/10.1073/pnas.1719445115. [LC]
Blatz, C. W., Schumann, K. & Ross, M. (2009) Government apologies for
historical injustices. Political Psychology 30(2):21941. [RAA]
Bloom, P. (2011) Family, community, trolley problems, and the crisis in
moral psychology. The Yale Review 99(2):2643. [MSC, JM]
Bloom, P. (2013) Just babies: The origins of good and evil. Broadway Books. [JM]
Bodenhausen, G. V. (2010) Diversity in the person, diversity in the group: Challenges of
identity complexity for social perception and social interaction. European Journal of
Social Psychology 40(1):116. [JBH]
Boesch, C. (2005) Joint cooperative hunting among wild chimpanzees: Taking natural
observations seriously. Behavioural and Brain Sciences 28(5):69293. [AK]
Boesch, C. & Boesch-Achermann, H. (2000) The chimpanzees of the Taï forest. Oxford
University Press. [AK]
Bohner, G., Bless, H., Schwarz, N. & Strack, F. (1998) What triggers causal attributions?
The impact of valence and subjective probability. European Journal of Social
Psychology 18(4):33545. [RAA]
Bostyn, D. H. & Roets, A. (2016) The morality of action: The asymmetry between judg-
ments of praise and blame in the actionomission effect. Journal of Experimental
Social Psychology 63:1925. [RAA]
Bourdieu, P. (1977) Outline of a theory of practice, vol. 16. Cambridge University Press.
[HMM]
Bowlby, J. (1946) Psychology and democracy. The Political Quarterly 17(1):6175. doi:10.
1111/j.1467-923X.1946.tb01028.x. [RAT]
Brandom, R. (1994) Making it explicit. Harvard University Press. [PHL]
Bratman, M. (1992) Shared co-operative activity. Philosophical Review 101(2):32741.
[aMT]
Bratman, M. E. (2014) Shared agency: A planning theory of acting together. Oxford
University Press. [MEB, AK, PP, arMT]
Brosnan, S. F. & de Waal, F. B. M. (2003) Monkeys reject unequal pay. Nature 425:297
99. [AK, aMT]
Buchtel, E. E., Guan, Y., Peng, Q., Su, Y., Sang, B., Chen, S. X. & Bond, M. H. (2015)
Immorality East and West: Are immoral behaviors especially harmful, or especially
uncivilized? Personality and Social Psychology Bulletin 41(10):138294. https://doi.
org/10.1177/0146167215595606. [EEB]
Buchtel, E. E., Ng, L. C. Y., Norenzayan, A., Heine, S. J., Biesanz, J. C., Chen, S. X., Bond,
M. H., Peng, Q. & Su, Y. (2018) A sense of obligation: Cultural differences in the expe-
rience of obligation. Personality and Social Psychology Bulletin 44(11):154566. https://
doi.org/10.1177/0146167218769610. [EEB]
Bugental, D. B. (2000) Acquisition of the algorithms of social life: A
domain-based approach. Psychological Bulletin 126(2):187219. [MSC]
Butler, L. & Markman, E. (2014) Preschoolers use pedagogical cues to guide radical reor-
ganization of category knowledge. Cognition 130(1):11627. [aMT]
Butler, L. P. and Tomasello, M. (2016) Two- and 3-year-olds integrate linguistic and ped-
agogical cues in guiding inductive generalization and exploration. Journal of
Experimental Child Psychology 145:6478. [aMT]
References/Tomasello: The moral psychology of obligation 51
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Buttelmann, D. & Boehm, R. (2014) The ontogeny of the motivation that underlies
in-group bias. Psychological Science 25(4):92127. [MR]
Buttelmann, D., Zmyj, N., Daum, M. & Carpenter, M. (2013) Selective imitation of
in-group over outgroup members in 14-month-old infants. Child Development 84
(2):42228. [ZL]
Cain, D. M., Dana, J. & Newman, G. E. (2014) Giving versus giving in. The Academy of
Management Annals 8(1):50533. [DD]
Carpendale, J. I. M. (2018) Communication as the coordination of activity: The implica-
tions of philosophical preconceptions for theories of the development of communica-
tion. In: Advancing developmental science: Philosophy, theory, and method, ed. A.
S. Dick & U. Müller, pp. 14556. Routledge, Taylor & Francis group. [JIMC]
Carpendale, J. I. M., Hammond, S. I. & Atwood, S. (2013) Chapter Six A relational
developmental systems approach to moral development. In: Advances in child develop-
ment and behavior, vol. 44, ed. R. M. Lerner & J. B. Benson, pp. 12553. Elsevier
Science. doi:10.1016/B978-0-12-397946-9.00006-3. [JIMC, RAT]
Carpendale, J. I. M. & Lewis, C. (2004) Constructing an understanding of mind: The
development of childrens social understanding within social interaction. Behavioral
and Brain Sciences 27(1):7996. [JIMC]
Carpendale, J. I. M. & Lewis, C. (2006) How children develop social understanding.
Blackwell. [JIMC]
Carpendale, J. I. M. & Lewis, C. (2015a) Taking natural history seriously in studying the
social formation of thinking: Critical analysis of A natural history of human thinking
by Michael Tomasello. Human Development 58(1):5566. [JIMC]
Carpendale, J. I. M. & Lewis, C. (2015b) The development of social understanding. In:
Handbook of child psychology and developmental science, vol. 2: Cognitive processes,
ed. L. Liben & U. Müller, pp. 381424. Wiley-Blackwell. [JIMC]
Chalik, L. & Dunham, Y. (2020) Beliefs about moral obligation structure childrens social
category-based expectations. Child Development 91(1):e108e119. https://doi.org/10.
1111/cdev.13165. [LC]
Chalik, L. & Rhodes, M. (2014) Preschoolers use social allegiances to predict behavior.
Journal of Cognition and Development 15(1):13660. https://doi.org/10.1080/
15248372.2012.728546. [LC]
Chalik, L. & Rhodes, M. (2015) The communication of naïve theories of the social world
in parentchild conversation. Journal of Cognition and Development 16:71941. [aMT]
Chalik, L. & Rhodes, M. (2018) Learning about social category-based obligations.
Cognitive Development
48:11724. https://doi.org/10.1016/j.cogdev.2018.06.010. [LC,
MR]
Chalik, L. & Rhodes, M. (forthcoming) Groups as moral boundaries: A developmental
perspective. In: Advanced in child development and behavior, vol. 58, ed. J. Benson.
[MR]
Chalik, L., Rivera, C. & Rhodes, M. (2014) Childrens use of categories and mental states
to predict social behavior. Developmental Psychology 50(10):236067. https://doi.org/
10.1037/a0037729. [LC]
Chapais, B. (2008) Primeval Kinship: How pair-bonding gave birth to human society.
Harvard University Press. [BF]
Chapais, B. (2011) The deep social structure of human kind. Science 331:127677. [BF]
Cheney, D. L. & Seyfarth, R. M. (1980) Vocal recognition in free-ranging vervet monkeys.
Animal Behaviour 28(2):36267. [RBR]
Chisholm, J. S. (in press) Attachment and the deep history of culture. In: Attachment: The
fundamental questions, ed. R. A. Thompson, J. A. Simpson & L. Berlin. Guilford.
[RAT]
Choshen-Hillel, S., Lin, Z. & Shaw, A. (in press) Children weigh equity and efficiency in
making allocation decisions: Evidence from the US, Israel, and China. Journal of
Economic Behavior & Organization. [AS]
Cialdini, R. B. & Goldstein, N. J. (2004) Social influence: Compliance and conformity.
Annual Review of Psychology 55(1):591621. [JBH]
Clark, M. S. (1984) Record keeping in two types of relationships. Journal of Personality
and Social Psychology 47(3):54957. [MSC]
Clark, M. S. & Boothby, E. (2013) A strange(r) analysis of morality: a consideration of
relational context and the broader literature is needed. Brain and Behavioral
Sciences 36(1):8586. [MSC]
Clark, M. S., Dubash, P. & Mills, J. (1998) Interest in anothers consideration of
ones needs. Journal of Experimental Social Psychology 34(3):24664. [MSC]
Clark, M. S., Lemay, E. P. & Reis, H. T. (2017) Other people as situations: Relational con-
text shapes psychological pheno mena. In: Oxford handbook of situations, ed.
D. Funder & R. Sherman, pp. 140. Oxford University Press. [MSC]
Clark, M. S. & Mills, J. (1979) Interpersonal attraction in exchange and communal relation-
ships. Journal of Personality and Social Psychology 37(1):1224. [MSC]
Clark, M. S. & Mills, J. (1993) The difference between communal and exchange relation-
ships: What it is and is not. Personality and Social Psychology Bulletin 19:684
91. [JM]
Clark, M. S. & Mills, J. (2012) A theory of communal (and exchange) relationships. In:
Handbook of theories of social psychology, vol. 2, ed. P. A. M. Van Lange, A.
W. Kruglanski & E. T. Higgins, pp. 23250. SAGE. [MSC]
Clark, M. S., Mills, J. & Corcoran, D. (1989) Keeping track of needs and inputs of friends
and strangers. Personality and Social Psychology Bulletin 15(4):53342. [MSC]
Clark, M. S., Ouellette, R., Powell, M. C. & Milberg, S. (1987) Recipients mood, relation-
ship type, and helping. Journal of Personality and Social Psychology 53(1):94103.
[MSC]
Corbit, J. (2019) Increased sharing between collaborators extends beyond the spoils
of collaboration. Journal of Experimental Child Psychology 186:15970. doi:10.1016/
j.jecp.2019.06.003. [JC]
Corbit, J., McAuliffe, K., Callaghan, T. C., Blake, P. R. & Warneken, F. (2017) Childrens
collaboration induces fairness rather than generosity. Cognition 168:34456. doi:10.
1016/j.cognition.2017.07.006. [JC, aMT]
Cosmides, L, Barrett, H. C. & Tooby, J. (2010) Adaptive specializations, social exchange,
and the evolution of human intelligence. Proceedings of the National Academy of
Sciences 107(Suppl. 2):900714. [DD]
Cosmides, L. & Tooby, J. (2004) Social exchange: The evolutionary design of a neurocog-
nitive system. In: The cognitive neurosciences III, ed. M. S. Gazzaniga, pp. 12951308.
MIT Press. [aMT]
Csibra, G. & Gergely, G. (2009) Natural pedagogy. Trends in Cognitive Sciences 13
(4):14853. [HMM, aMT]
Curry, O. S., Mullins, D. A. & Whitehouse, H. (2019) Is it good to cooperate? Testing the
theory of morality-as-cooperation in 60 societies. Current Anthropology 60(1):47. [BF]
Dahl, A. (2014) Definitions and developmental processes in research on infant morality.
Human Development 57(4):24149. doi:10.1159/000364919. [MK]
Dahl, A. & Killen, M. (2018) Moral reasoning: Theory and research in developmental
science. In: The Stevens handbook of experimental psychology and cognitive neuro-
science, Vol. 4: Developmental and social psychology (S. Ghetti, Vol. Ed.), 4
th
edition,
ed. J. Wixted, pp. 131. Wiley. doi:10.1002/9781119170174.epcn410. [MK]
Dahl, A., Sherlock, B. R., Campos, J. J. & Theunissen, F. E. (2014) Mothers tone of voice
depends on the nature of infants transgressions. Emotion 14(4):65165. https://doi.
org/10.1037/a0036608. [SB-D]
Dahl, A. & Tran, A. Q. (2016) Vocal tones influence young childrens responses
to prohibitions. Journal of Experimental Child Psychology 152:7191. https://doi.org/
10.1016/j.jecp.2016.07.009. [SB-D]
Darwall, S. (2006) The second-person standpoint: Morality, respect, and accountability.
Harvard University Press. [SD, DO, aMT]
Darwall, S. (2013a) Bipolar obligation. In: Morality, authority, and law: Essays in
second-personal ethics I, ed. S. Darwall, pp. 2039. Oxford University Press. [SD, aMT]
Darwall, S. (2013b) Honor, history, and relationship: Essays in second-p ersonal ethics II.
Oxford University Press. [SD]
Darwall, S. (2013c) Morality, authority, and law: Essays in second-personal ethics I.
Oxford University Press. [SD, CK, aMT]
de León, L. (2019) Playing at being bilingual: Bilingual performances, stance, and lan-
guage scaling in Mayan Tzotzil siblings play. Journal of Pragmatics 144:92108.
https://doi.org/10.1 016/j.pragma.2018.02.006 . [ZL]
de Waal, F. B. M. (2006a) Joint ventures require joint payoffs: Fairness among primates.
Social Research 73(2):34964. [AK]
de Waal, F. B. M. (2006b) Primates and philosophers: How morality evolved. Princeton
University Press. [aMT]
de Waal, F. (2008) The ape and the sushi master: Cultural reflections of a primatologist.
Basic Books. [HMM]
de Waal, F. B. M. & van Roosmalen, A. (1979) Reconciliation and consolation
among chimpanzees. Behavioral Ecology and Sociobiology 5(1):5566. [RBR]
Diesendruck, G. & Deblinger-Tangi, R. (2014) The linguistic cons truction of social categories
in toddlers. Child Development 85(1):11423. https://doi.org/10.1111/cdev.12130. [LC]
Diesendruck, G., Markson, L. & Bloom, P. (2003) Childrens reliance on creators intent
in extending names for artifacts.
Psychological Science 14(2):16468. https://doi.org/10.
1111/1467-9280.t01-1-01436. [MR]
DiFonzo, N. & Bordia, P. (2007) Rumor, gossip and urban legends. Diogenes 54(1):1935.
[HMM]
Du Bois, J. W. (2007) The stance triangle. In: Stancetaking in discourse: Subjectivity, eval-
uation, interaction, ed. R. Englebretson, pp. 13982. John Benjamins. [ZL]
Du Bois, J. W. (2014) Towards a dialogic syntax. Cognitive Linguistics 25(3):359410.
doi:10.1515/cog-2014-0024. [ZL]
Du Bois, J. W., Hobson, R. P. & Hobson, J. A. (2014) Dialogic resonance and intersub-
jective engagement in autism. Cognitive Linguistics 25(3):41141. [ZL]
Dunfield, K. A., Kuhlmeier, V. A. & Murphy, L. (2013) Childrens use of communicative
intent in the selection of cooperative partners. PloS one 8:e61804. doi:10.1371/journal.
pone.0061804. [PHL]
Dungan, J. A., Young, L. & Waytz, A. (2019) The power of moral concerns in predicting
whistleblowing decisions. Journal of Experimental Social Psychology 85:103848. [AS]
Dunham, Y. (2018) Mere membership. Trends in Cognitive Sciences 22(9):78093. https://
doi.org/10.1016/j.tics.2018.06.004. [MR, aMT]
Dunham, Y., Baron, A. S. & Banaji, M. R. (2008) The development of implicit
intergroup cognition. Trends in Cognitive Sciences 12(7):24853. [aMT]
Dunham, Y., Baron, A. S. & Carey, S. (2011) Consequences of minimal group affilia-
tions in children. Child Development 82(3):793811. https://doi.org/10.1111/j.1467-
8624.2011.01577.x. [MR]
52 References/Tomasello: The moral psychology of obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Dunn, J. (1987) The beginnings of moral understanding: Development in the second year.
In: The emergence of morality in young children, ed. J. Kagan & S. Lamb, pp. 91111.
University of Chicago Press. [KB]
Dunn, J. & Munn, P. (1986) Siblings and the development of prosocial behavior.
International Journal of Behavioral Development 9:26584. [KB]
Dunning, D., Anderson, J. E., Schlösser, T., Ehlebracht, D. & Fetchenhauer, D. (2014)
Trust at zero acquaintance: More a matter of respect than expectation of reward.
Journal of Personality and Social Psychology 107(1):12241. [DD, HMM]
Dunning, D., Fetchenhauer, D. & Schlösser, T. (2012) Trust as a social and emotional act:
Noneconomic considerations in trust behavior. Journal of Economic Psychology 33
(3):68694. [DD]
Dunning, D., Fetchenhauer, D. & Schlösser, T. (2016) The psychology of respect: A case
study of how behavioral norms regulate human action. In: Advances in motivation sci-
ence, vol. 3, ed. A. Elliot, pp. 134. Elsevier. [DD]
Dunning, D., Fetchenhauer, D. & Schlösser, T. (2019) Why people trust: Solved puzzles
and open mysteries. Current Directions in Psychological Science 28(4):36671. [DD]
Elenbaas, L. (2019) Interwealth contact and young childrens concern for equity. Child
Development 90:10816. doi:10.1111/cdev.13157. [MK]
Engelmann, J. M., Haux, L. M. & Herrmann, E. (2019) Helping in young children and
chimpanzees shows partiality towards friends. Evolution and Human Behavior 40
(3):292300. [RBR]
Engelmann, J. M., Herrmann, E. & Tomasello, M. (2012) Five-year olds, but not chim-
panzees, attempt to manage their reputations. PLOS ONE 7(10):e48433. [aMT]
Engelmann, J. M., Over, H., Herrmann, E. & Tomasello, M. (2013) Young children care
more about their reputation with ingroup members and potential reciprocators.
Developmental Science 16(6):95258. [aMT]
Engelmann, J. M., Rapp, D., Herrmann, E. & Tomasello, M. (2016) Young children
(sometimes) do the right thing even when their peers do not. Cognitive
Development 39:8692. [aMT]
Engelmann, J. M., Rapp, D., Herrmann, E. & Tomasello, M. (2018) Concern for group
reputation increases prosociality in young children. Psychological Science 29:18190.
[aMT]
Engelmann, J. M. & Tomasello, M. (2019) Childrens sense of fairness as a sense of
equal respect. Trends in the Cognitive Sciences 23(6):45463. [aMT]
Engelmann, J. M. & Tomasello, M. (2018) The middle step: Joint intentionality as a
human-unique form of second-personal engagement. In: The Routledge handbook
of collective intentionality, ed. M. Jankovic & K. Ludwig, pp. 433
46. Routledge. [MEB]
Engh, A. L., Beehner, J. C., Bergman, T. J., Whitten, P. L., Hoffman, R. R., Seyfarth, R. M.
& Cheney, D. L. (2006) Behavioral and hormonal responses to predation in female
chacma baboons (Papio hamadryas ursinus). Proceedings of the Royal Society B 273
(1587):70712. [RBR]
Everett, J. A., Faber, N. S., Savulescu, J. & Crockett, M. J. (2018) The costs of being con-
sequentialist: Social inference from instrumental harm and impartial beneficence.
Journal of Experimental Social Psychology 79:20016. [AS]
Fehr, E., Bernhard, H. & Rockenbach, B. (2008) Egalitarianism in young children. Nature
454(7208):107983. https://doi.org/10.1038/nature07155. [LC, aMT]
Feinberg, M., Willer, R. & Schultz, M. (2014) Gossip and ostracism promote cooperation
in groups. Psychological Science 25(3):65664. [AR]
Feinberg, M., Willer, R., Stellar, J. & Keltner, D. (2012) The virtues of gossip: Reputational
information sharing as prosocial behavior. Journal of personality and social psychology
102(5):101530. [HMM]
Fetchenhauer, D. & Dunning, D. (2009) Do people trust too much or too little? Journal of
Economic Psychology 30(3):26376. [DD]
Fetchenhauer, D. & Dunning, D. (2012) Betrayal aversion versus principled trustfulness:
How to explain risk avoidance and risky choices in trust games. Journal of Economic
Behavior and Organization 81(2):53441. [DD]
Fetchenhauer, D., Dunning, D. & Schlösser, T. (2017) The mystery of trust: Trusting too
much while trusting too little at the same time. In: Trust in social dilemmas, ed. P. Van
Lange, B. Rockenbach & T. Yamagishi, pp. 13954. Oxford University Press. [DD]
Fiske, A. P. (1992) The four elementary forms of sociality: Framework for a unified theory
of social relations. Psychological Review 99(4):689723. [MSC, AS]
Foot, P. (1967) The problem of abortion and the doctrine of double effect. Oxford Review
5:17. [BF]
Foster-Hanson, E., Moty, K., Cardarelli, A., Ocampo, J. D. & Rhodes, M. (2019)
Developmental changes in strategies for gathering evidence about biological kinds.
https://doi.org/10.31234/osf.io/gm96d. [MR]
Foster-Hanson, E. & Rhodes, M. (2019) Is the most representative skunk the average
or the stinkiest? Developmental changes in representations of biological categories.
Cognitive Psychology 110:115. https://doi.org/10.1016/j.cogpsych.2018.12.004. [MR]
Foster-Hanson, E., Roberts, S. O., Gelman, S. A. & Rhodes, M. (2018) Categories convey
normative information across domains. https://doi.org/10.31234/osf.io/b37av. [MR]
Frankfurt, H. G. (1982) The importance of what we care about. Synthese 53:25790
(reprinted in Frankfurt 1988, pp. 80
94). [KKB-O]
Frankfurt, H. G. (1988) The importance of what we care about. Cambridge University
Press. [KKB-O]
Frankfurt, H. G. (2004) The reasons of love. Princeton University Press. [KKB- O]
Frankfurt, H. G. (2006) Taking ourselves seriously and getting it right (ed. D. Satz, with
comments by C. M. Korsgaard, M. E. Bratman, and M. Dan-Cohen). Stanford
University Press. [KKB-O]
Fu, G., Heyman, G. D., Chen, G., Liu, P. & Lee, K. (2015) Children trust people who lie to
benefit others. Journal of Experimental Child Psychology 129 :127139. [AS]
Gaither, S., Chen, E., Corriveau, K., Harris, P., Ambady, N. & Sommers, S. (2014)
Monoracial and biracial children: Effects of racial identity saliency on social learning
and social preferences. Child Development 85(6):2299 316. doi:10.1111/cdev.12266.
[MK]
Gelfand, M. J., Chiu, C. & Hong, Y. (2016) Handbook of advances in culture and psychol-
ogy, vol. 6. Oxford University Press. [MK]
Gelfand, M. J., Harrington, J. R. & Jackson, J. C. (2017) The strength of social norms
across human groups. Perspectives on Psychological Science 12 (5):800809. [JBH]
Gelfand, M. J., Raver, J. L., Nishii, L., Leslie, L. M., Lun, J., Lim, B. C., Duan, L., Almaliach,
A., Ang, S., Arnadottir, J., Aycan, Z., Boehnke, K., Boski, P., Cabecinas, R., Chan, D.,
Chhokar, J., DAmato, A., Ferrer, M., Fischlmayr, I. C., Fischer, R., Fulup, M., Georgas,
J., Kashima, E. S., Kashima, Y., Kim, K., Lempereur, A., Marquez, P., Othman, R.,
Overlaet, B., Panagiotopoulou, P., Peltzer, K., Perez-Florizno, L. R., Ponomarenko,
L., Realo, A., Schei, V., Schmitt, M., Smith, P. B., Soomro, N., Szabo, E., Taveesin,
N., Toyama, M., Van de Vliert, E., Vohra, N., Ward, C., & Yamaguchi, S. (2011)
Differences between tight and loose cultures: A 33-nation study. Science 332
(6603):1100104. [JBH]
Gergley, G. & Csibra, G. (2003) Teleological reasoning in infancy: The naive theory of
rational action. Trends in Cognitive Science 7(7):28792. [CK]
Gilbert, M. (1989) On social facts. Routledge and Kegan Paul. [MG]
Gilbert, M. (1990) Walking together: A paradigmatic social phenomenon. Midwest
Studies in Philosophy 15(1):114. [MG, aMT]
Gilbert, M. (1992) On social facts. Princeton University Press. [PHL]
Gilbert, M. (1996) Living together: Rationality, sociality, and obligation. Rowman &
Littlefield. [MG]
Gilbert, M. (2003) The structure of the social atom: Joint commitment as the foundation
of human social behavior. In: Social metaphysics, ed. F. Schmitt, pp. 3964. Rowman &
Littlefield. [MG]
Gilbert, M. (2006) A theory of political obligation: Membership, commitment, and the
bonds of society. Oxford University Press. [MG]
Gilbert, M. (2014) Joint commitment: How we make the social world. Oxford University
Press. [MG, PP aMT]
Gilbert, M. (2018a) Remarks on joint commitment and its relation to moral thinking.
Philosophical Psychology 31(5):75566. [MG]
Gilbert, M. (2018b) Rights and demands: A fou ndational inquiry. Oxford University
Press. [MG]
Gneezy, A. & Epley, N. (2014) Worth keeping but not exceeding: Asymmetric conse-
quences of breaking versus exceeding promises. Social Psychological and Personality
Science 5(7):796804. [RAA]
Göckeritz, S., Schmidt, M. F. H. & Tomasello, M. (2014) Young childrens creation and
transmission of social norms. Cognitive Development 30:8195. [aMT]
Goldberg, A. E. (2006) Constructions at work: The nature of generalization in language.
Oxford University Press. [PHL]
Goodwin, G. P. & Darley, J. M. (2012) Why are some moral beliefs perceived to be more
objective than others?. Journal of Experimental Social Psychology 48(1):25056. [RAA]
Goodwin, M. H. (2006) The hidden life of girls: Games of stance, status, and exclusion.
Blackwell. [ZL]
Gopnik, A. (2009) The philosophical baby: What childrens minds tell us about truth, love
& the meaning of life. Random House. [JM]
Gopnik, A. & Wellman, H. M. (2012) Reconstructing constructivism: Causal models,
Bayesian learning mechanisms, and the theory-theory. Psychological Bulletin 138
(6):1085108. https://doi.org/10.1037/a0028044. [MR]
Gould, L. (1992) Alloparental care in free-ranging Lemur catta at Berenty Reserve,
Madagascar. Folia Primatologica 58(2):7283. [RBR]
Goulding, B. W. & Friedman, O. (2018) The development of territory-based inferences
of ownership. Cognition 177:14249. doi:10.1016/j.cognition.2018.04.013. [MK]
Gräfenhain, M., Behne, T., Carpenter, M. & Tomasello, M. (2009) Young childrens
understanding of joint commitments. Developmental Psychology 45(5):143033.
[KB, aMT]
Gräfenhain, M., Carpenter, M. & Tomasello, M. (2013) Three-year-olds understanding
of the consequences of joint commitments. PLOS ONE 8(9):e73039. [aMT]
Graham, J., Haidt, J., Koleva, S., Motyl, M., Iyer, R., Wojcik, S. P. & Ditto, P. H. (2013)
Moral foundations theory: The pragmatic validity of moral pluralism. In: Advances in
experimental social psychology, vol. 47, pp. 55130. Academic Press. [BF]
Grassmann, S. & Tomasello, M. (2010) Young children follow pointing over words in
interpreting acts of reference. Developmental Science 13(1):25263. [PHL]
Greenberg, J. R., Hamann, K., Warneken, F. & Tomasello, M. (2010) Chimpanzee helping
in collaborative and noncollaborative contexts. Animal Behaviour 80
(5):87380.
[aMT]
References/Tomasello: The moral psychology of obligation 53
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Greene, J. D. (2008) The secret joke of Kants soul. Moral Psychology 3 :3579. [AS]
Greene, J. D. (2013) Moral tribes: Emotion, reason, and the gap between us and them.
Atlantic Books. [BF]
Grice, H. P. (1975) Logic and conversation. In: Syntax and semantics, vol. 3: Speech acts,
ed. P. Cole & J. L. Morgan, pp. 4158. Academic Press. [JIMC]
Grocke, P., Rossano, F. & Tomasello, M. (2015) Procedural justice in children:
Preschoolers accept unequal resource distributions if the procedure provides
equal opportunities. Journal of Experimental Child Psychology 140:197210. [aMT]
Grocke, P., Rossano, F. & Tomasello, M. (2018) Young children are more willing to accept
group decisions in which they have had a voice. Journal of Experimental Child
Psychology 166:6778. [aMT]
Grosse, G., Behne, T., Carpenter, M. & Tomasello, M. (2010) Infants communicate in
order to be understood. Developmental Psychology 46(6):171022. [PHL]
Guglielmo, S. & Malle, B. F. (2019) Asymmetric morality: Blame is more differentiated
and more extreme than praise. PLOS ONE 14(3):e0213544. https://doi.org/10.1371/
journal.pone.0213544. [RAA]
Habermas, J. (1990) Moral consciousness and communicative action. MIT Press. (Original
work published in 1983). [JIMC]
Hage, P. & Harary, F. (1996) Island networks: Communication, kinship, and classification
structures in Oceania. Cambridge University Press. [AB]
Haidt, J. & Baron, J. (1996) Social roles and the moral judgement of acts and omissions.
European Journal of Social Psychology 26(2):201 18. [RAA, MSC, JM]
Hall, M. S., Franks, B., Bauer, M. & Bangerter, A. (2019, in preparation) The coexistence
of commonsense and conspiracist views in conspiratorial worldviews. Department of
Psychological and Behavioural Science, London School of Economics. [BF]
Hamann, K., Warneken, F., Greenberg, J. R. & Tomasello, M. (2011) Collaboration
encourages equal sharing in children but not in chimpanzees. Nature 476
(7360):32831. doi:10.1038/nature10278. [JC, aMT]
Hamann, K., Warneken, F. & Tomasello, M. (2012) Childrens developing commitments
to joint goals. Child Development 83(1):13745. [aMT]
Hamlin, J. K. (2013) Moral judgment and action in preverbal infants and toddlers:
Evidence for an innate moral core. Current Directions in Psychological Science 22
(3):18693. doi:10.1177/0963721412470687. [RBR, RAT]
Hardecker, S., Schmidt, M. & Tomasello, M. (2017) Childrens developing understanding
of the conventionality of rules. Cognition and Development 18(2):16388. [aMT]
Harris, P. L., Koenig, M. A., Corriveau, K. H. & Jaswal, V. K. (2017) Cognitive
foundations of learning from testimony. Annual Review of Psychology 69(1):25173.
[PHL]
Haun, D. & Over, H. (2014) Like me: A homophily-based account of human culture. In:
Cultural evolution, ed. P. J. Richerson & M. Christiansen, pp. 7585. MIT Press.
[aMT]
Haun, D. B. M. & Tomasello, M. (2011) Conformity to peer pressure in
preschool children. Child Development 82(6):175967. [aMT]
Haward, P., Wagner, L., Carey, S. & Prasada, S. (2018) The development of principled
connections and kind representations. Cognition 176:25568. https://doi.org/10.
1016/j.cognition.2018.02.001. [LC, MR]
Henrich, J., Boyd, R., Bowles, S., Camerer, C., Fehr, E., Gintis, H., McElreath, R., Alvard,
M., Barr, A., Ensminger, J., Henrich, N. S., Hill, K., Gil-White, F., Gurven, M.,
Marlowe, F. W., Patton, J. Q. & Tracer, D. (2005) Economic man in cross-cultural
perspective: Behavioral experiments in 15 small-scale societies. Behavioral and Brain
Sciences 28:795855. [AB]
Henrich, J., Ensminger, J., McElreath, R., Barr, A., Barrett, C., Bolyanatz, A., Cardenas, J.
C., Gurven, M., Gwako, E., Henrich, N., Lesorogol, C., Marlowe, F., Tracer, D. & Ziker,
J. (2010) Markets, religion, community size, and the evolution of fairness
and punishment. Science 327(5972):148084. doi:10.1126/science.1182238. [AB, DD]
Hetherington, C., Hendrickson, C. & Koenig, M. (2014) Reducing an in-group bias in
preschool children: The impact of moral behavior. Developmental Science 17
(6):104249. [PHL]
Higgins, E. T. (1987) Self-discrepancy: A theory relating self and affect. Psychological
Review 94(3):31940. [DD]
Hill, K. (2002) Altruistic cooperation during foraging by the Ache, and the evolved
human predisposition to cooperate. Human Nature 13(1):10528. [rMT]
Hill, K. R., Walker, R. S., Božičević, M., Eder, J., Headland, T., Hewlett, B., Hurtado, A.
M., Marlowe, F., Wiessner, P. & Wood, A. (2011) Co-residence patterns in hunter-
gatherer socie ties show unique human social structure. Science 331:128689. [BF]
Hinchman, E. (2005) Telling as inviting to trust. Philosophy and Phenomenological
Research 70(3):56287. [PHL]
Hirsh, J. B. & Kang, S. K. (2016) Mechanisms of identity conflict: Uncertainty, anxiety,
and the behavioral inhibition system. Personality and Social Psychology Review 20
(3):223
44. [JBH]
Hirsh, J. B., Lu, J. G. & Galinsky, A. D. (2018) Moral utility theory: Understanding the
motivation to behave (un)ethically. Research in Organizational Behavior 38(1):43
59. [JBH]
Høgh-Olesen, H. (Ed.) (2009) Human morality and sociality: Evolutionary and compar-
ative perspectives. Palgrave Macmillan. [AK]
Hohfeld, W. N. (1923) Fundamental legal concepts as applied in judicial reasoning and
legal essays. Yale University Press. [aMT]
Holton, R. (1994) Deciding to trust, coming to believe. Australasian Journal of Philosophy
72(1):6376. [PHL]
House, B. & Tomasello, M. (2018) Modeling social norms increasingly influences costly
sharing in middle childhood. Journal of Experimental Child Psychology 171:8498.
[aMT]
House, B. R., Henrich, J., Brosnan, S. F. & Silk, J. B. (2012) The ontogeny of human pro-
sociality: Behavioral experiments with children aged 3 to 8. Evolution and Human
Behavior 33:291308. [aMT]
House, B. R., Silk, J. B., Henrich, J., Barrett, H. C., Scelza, B. A., Boyette, A. H., Hewlett, B.
S. & Laurence, S. (2013) Ontogeny of prosocial behavior across diverse societies.
Proceedings of the National Academy of Sciences 110:14586591. [aMT]
Hrdy, S. B. (2009) Mothers and others: The evolutionary origins of mutual understanding.
Harvard University Press. [RAT]
Hume, D. (1751/1957) An enquiry concerning the principles of morals. Bobbs-Merrill.
[aMT]
Ibbotson, P. (2014) Little dictators: A developmental meta-analysis of prosocial behavior.
Current Anthropology 55(6):81421. [aMT]
Janoff-Bulman, R., Sheikh, S. & Hepp, S. (2009) Proscriptive versus prescriptive morality:
Two faces of moral regulation. Journal of Personality and Social Psychology 96(3):521
37. [RAA]
Jaswal, V. K. (2004) Dont believe everything you hear: Preschoolers sensitivity to speaker
intent in category induction. Child Development 75(6):187185. [PHL]
Jensen, K., Call, J. & Tomasello, M. (2007) Chimpanzees are rational maximizers in an
ultimatum game. Science 318(5847):10709. [aMT]
Jin, K-S. & Baillargeon, R. (2017) Infants possess an abstract expectation of
ingroup support. Proceedings of the National Academy of Sciences 114(31):819904.
https://doi.org/10.1 073/pnas.1706286114. [LC]
Kachel, U., Svetlova, M. & Tomasello, M. (2018) Three-year-olds reactions to a partners
failure to perform her role in a joint commitment. Child Development 89:1691
703.
[aMT]
Kachel, U., Svetlova, M. & Tomasello, M. (2019) Three- and 5-year-old childrens under-
standing of how to dissolve a joint commitment. Journal of Experimental Child
Psychology 184:3447. [aMT]
Kachel, U. & Tomasello, M. (2019) 3- and 5-year-old childrens adherence to explicit and
implicit joint commitments. Developmental Psychology 55(1):808. [arMT]
Kalish, C. W. (2005) Becoming status consciou s: Childrens appreciation of social reality.
Philosophical Explorations 8(3):24563. [CK]
Kalish, C. W. & Lawson, C. A. (2008) Development of social category representations:
Early appreciation of roles and deontic relations. Child Development 79:57793. [JM]
Kang, S. K. & Bodenhausen, G. V. (2015) Multiple identities in social perception and
interaction: Challenges and opportunities. Annual Review of Psychology 66(1):547
74. [JBH]
Kanngeisser, P., Rossano, F. & Tomasello, M. (2019) Children, but not great apes,
respect ownership. Developmental Science 23(1):e12842. [aMT]
Kaplan, H., Hill, K., Cadeliña, R. V., Hayden, B., Hyndman, D. C., Preston, R. J., Smith, E.
A., Stuart, D. E. & Yesner, D. R. (1985) Food sharing among ache foragers: Tests of
explanatory hypotheses. Current Ant hropology 26(2):22346. [AK]
Kaufmann, A. (2015) Animal mental action: Planning among chimpanzees. Review of
Philosophy and Psychology 6(4):74560. [AK]
Kaufmann, A. (2017) Joint distal intentions: Who shares what? In: Routledge handbook of
philosophy of the social mind, ed. J. Kiverstein, pp. 34356. Routledge. [AK]
Kelley, H. H. (1982) Personal relationships: Their structures and processes. Psychology
Press. [MSC]
Kelley, H. H., Holmes, J. G., Kerr, N. L., Reis, H. T., Rusbult, C. E. & Van Lange, P. A. M.
(2003) An atlas of interpersonal situations. Cambridge University Press. [MSC]
Ketelaar, T. & Au, W. T. (2003) The effects of feelings of guilt on the behaviour of unco-
operative individuals in repeated social bargaining games: An affect-as-information
interpretation of the role of emotion in social interaction. Cognition and Emotion
17(3):42953. [AR]
Keupp, S., Behne, T. & Rakoczy, H. (2013) Why do children over-imitate? Normativity
is crucial. Journal of Experimental Child Psychology 116:392406. [aMT]
Killen, M. (2007) Childrens social and moral reasoning about exclusion. Current
Directions in Psychological Science 16(1):326. doi:
10.1111/j.1467-8721.2007.00470.x.
[MK]
Killen, M. & Smetana, J. G. (2015) Origins and development of morality. In: vol. 3,
Handbook of child psychology and developmental science (7th edition), ed. R.
M. Lerner & M. Lamb, pp. 70149. Wiley-Blackwell. https://psycnet.apa.org/record/
2015-15586-017. [MK]
Kinzler, D. K. & Shutts, K. (2008) Memory for mean over nice: The influence of
threat on childrens face memory. Cognition 107:77583. [RAA]
Kinzler, K. D., Dupoux, E. & Spelke, E. S. (2007) The native language of social cognition.
Proceedings of the National Academy of Sciences 104(30):1257780. https://doi.org/10.
1073/pnas.0705345104. [LC, ZL]
54 References/Tomasello: The moral psychology of obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Klein, N. & Epley, N. (2014) The topography of generosity: Asymmetric evaluations of
prosocial actions. Journal of Experimental Psychology: General 143(6):236679. [RAA]
Knobe, J. (2003a) Intentional action and side effects in ordinary language. Analysis 63
(279):19094. [RAA]
Knobe, J. (2003b) Intentional action in folk psychology: An experimental investigation.
Philosophical Psychology 16(2):30924. [RAA]
Kochanska, G. (2002) Mutually responsive orientation between mothers and their young
children: A context for the early development of conscience. Current Directions in
Psychological Science 11(6):19195. doi:10.1111/1467-8721.00198. [RAT]
Kochanska, G., Bold t, L. J. & Goffin, K. C. (2019) Early relational experience: A founda-
tion for the unfo lding dynamics of parent-child socialization. Child Development
Perspectives 13(1):417. doi:10.1111/cdep.12308. [RAT]
Kochanska, G., Coy, K. C. & Murray, K. T. (2001) The development of self-regulation in
the first four years of life. Child Development 72:1091111. [RAA]
Koenig, M. A. & Echols, C. H. (2003) Infants understanding of false label ing events: The
referential roles of words and the speakers who use them. Cognition 87(3):179 208.
[PHL]
Kohlberg, L. (1969) Stage and sequence: The cognitive developmental approach to social-
ization. In: Handbook of socialization theory and research, ed. D. Goslin, pp. 347480.
Rand McNally. [RAT]
Kohlberg, L. (197 1) From is to ought: How to commit the naturalistic fallacy and get away
with it in the study of moral development. In: Psychology and genetic epistemology, ed.
T. Mischel, pp. 347480. Academic Press. [MK]
Korsgaard, C. (1996) The sources of normativity. Cambridge University Press. [MK, arMT]
Koymen, B., Schmidt, M., Lieven, E. & Tomasello, M. (2015) Teaching versus enforcing
norms in preschoolers peer interactions. Journal of Experimental Child Psychology
135:93101. [aMT]
Köymen, S. B. & Kyratzis, A. (2014) Dialogic syntax and complement constructions in
toddlers peer interactions. Cognitive Linguistics 25(3):I497521. doi:10.1515/
cog-2014-0028. [ZL]
Krebs, D. L. (2008) Morality: An evolutionary account. Perspectives on Psychological
Science 3(3):14972.
https://doi.org/10.1111/j.1745-6924.2008.00072.x. [SB-D]
Kushnir, T. & Koenig, M. A. (2017) What I dont know wont hurt you: The relation
between professed ignorance and later knowledge claims. Developmental Psychology
53(5):82635. [PHL]
Lawler, E. J. (2001) An affective theory of social exchange. American Journal of Sociology
107(2):32152. [DD]
Lazare, A. (2004) On apology. Oxford University Press. [RAA]
Legare, C. H. & Gelman, S. A. (2008) Bewitchment, biology, or both: The co-existence of
natural and supernatural explanatory frameworks across development. Cognitive
Science 32(4):60742. [BF]
Lemay, E. P., Overall, N. C. & Clark, M. S. (2010) Experiences and interpersonal conse-
quences of hurt and anger. Journal of Personality and Social Psychology 103(6):982
1006. [MSC]
Lerner, J. S. & Tetlock, P. E. (1999) Accounting for the effects of accountability.
Psychological Bulletin 125(2):25575. [JBH]
Leslie, A. M., Knobe, J. & Cohen, A. (2006) Acting intentionally and the side-effect effect:
Theory of mind and moral judgment. Psychological Science 17(5):42127. [RAA]
Levine, E. E. & Schweitzer, M. E. (2014) Are liars ethical? On the tension between benev-
olence and honesty. Journal of Experimental Social Psychology 53 :107117. [AS]
Levine, S., Mikhail, J. & Leslie, A. M. (2018) Presumed innocent? How tacit assumptions
of intentional structure shape moral judgment. Journal of Experimental Psychology:
General 147 :1728 47. [AS]
Liberman, Z., Woodward, A. L. & Kinzler, K. D. (2017a) The origins of
social categorization. Trends in cognitive sciences 21(7):55668. [ZL]
Liberman, Z., Woodward, A. L. & Kinzler, K. D. (2017b) Preverbal infants infer third-
party social relationships based on language. Cognitive Science 41(3):62234. [ZL]
Liberman, Z., Woodward, A. L., Sullivan, K. R. & Kinzler, K. D. (2016) Early emerging
system for reasoning about the social nature of food. Proceedings of the National
Academy of Sciences 113(34):948 085. [ZL]
Lyons, D. E., Young, A. G. & Keil, F. C. (2007) The hidden structure of overimitation,
Proceedings of the National Academy of Sciences 104(50):1975156. [aMT]
Maccoby, E. E. (1984) Socialization and developmental change. Child Development 55
(2):31728. doi:10.2307/1129945. [RAT]
MacWhinney, B. (2000) The CHILDES project: Tools for analyzing talk, vol. 2, The data-
base (3rd edition). Erlbaum. [KB]
Mamman, M., Koymen, B. & Tomasello, M. (2018) The reasons young children give to
peers when explaining their judgments of moral and conventional rules.
Developmental Psychology 54(2):25462. [KB, aMT]
Maranges, H. M. & Ainsworth, S. E. (2020) Moralization of obesity: Social error manage-
ment concerns about self-control and cooperation. Unpublished manuscript. Florida
State University, Tallahassee, FL. [HMM]
Marshall, J., Mermin-Bunnell, N., Gollwitzer, A., Shinomiya, M., Retelsdorf, J. & Bloom,
P. (in preparation) The developmental foundations of relational obligations across 5
societies. [JM, rMT]
Marshall, J., Wynn, K. & Bloom, P. (in press) Do children and adults take social relation-
ship into account when evaluating other peoples actions? Child Development. [JM]
McGraw, A. P. & Tetlock, P. E. (2005) Taboo trade-offs, relational framing, and the
acceptability of exchanges. Journal of Consumer Psychology 15(1):215. [MSC]
McMyler, B. (2011) Testimony, trust, and authority. Oxford University Press. [PHL]
Melis, A. P., Floedl, A. & Tomasello, M. (2015) Non-egalitarian allocations among pre-
school peers in a face-to-face bargaining task. PLOS ONE 10(3):e0120494. [aMT]
Melis, A. P., Hare, B. & Tomasello, M. (2006) Engineering cooperation in chimpanzees:
Tolerance constraints on cooperation. Animal Behaviour 72(2):27586. [aMT]
Melis, A. P., Schneider, A.-C. & Tomasello, M. (2011) Chimpanzees share food in the
same way after collaborative and individual food acquisition. Animal Behaviour 82
(3):48593. [aMT]
Miller, J. G. & Bersoff, D. M. (1992) Culture and moral judgment: How are conflicts
between justice and interpersonal responsibilities resolved? Journal of Personality
and Social Psychology 62(4):54154. [EEB, AS]
Miller, J. G., Bersoff, D. M. & Harwood, R. L. (1990) Perceptions of social responsibilities
in India and in the United States: Moral imperatives or personal decisions? Journal of
Personality and Social Psychology 58(1):3347. [EEB, JM]
Miller, J. G., Das, R. & Chakravarthy, S. (2011) Culture and the role of choice in agency.
Journal of Personality and Social Psychology 101(1):4661. https://doi.org/10.1037/
a0023330. [EEB]
Misch, A., Over, H. & Carpenter, M. (2014, October) Stick with your group: Young child-
rens attitudes about group loyalty. Journal of Experimental Child Psychology 126:19
36. https://doi.org/10.1016/j.jecp.2014.02.008. [LC, aMT]
Mitani, J. C., Merriwether, D. A. & Zhang, C. (2000) Male affiliation, cooperation and
kinship in wild chimpanzees. Animal Behaviour 59(4):88593. [RBR]
Moore, C. & Barresi, J. (2017) The role of second-person information in the development
of social understanding. Frontiers in Psychology 8. doi:10.3389/fpsyg.2017.01667. [JC]
Moran, R. (2005) Problems of sincerity. Proceedings of the Aristotelian Society 105
(1):32545. [PHL]
Mulvey, K. L. (2016a) Childrens reasoning about social exclusion: Balancing many fac-
tors. Child Development Perspectives 10(1):227. doi:10.1111/cdep.12157. [MK]
Mulvey, K. L. (2016b) Evaluations of moral and conventional intergroup transgressions.
British Journal of Developmental Psychology 34(4):489501. doi:10.1111/bjdp.12145 .
[MK]
Nagel, T. (1970a) The possibil ity of altruism. Clarendon Press. [HR]
Nagel, T. (1970b) The possibility of altruism. Oxford University Press. [arMT]
Nesdale, D. (2004) Social identity processes and childrens ethnic prejudice. In: The devel-
opment of the social self, ed. M. Bennett & F. Sani, pp. 21945. Psychology Press. [MK]
Nesse, R. M. & Ellsworth, P. C. (2009) Evolution, emotions, and emotional disorders.
American Psychologist 64(2):12939. https://doi.org/10.1037/a0013503. [SB-D]
Newton, E. K., Thompson, R. A. & Goodman, M. (2016) Individual differences in tod-
dlers prosociality: Experiences in early relationships explain variability in
prosocial behavior. Child Development 87 (6):171526. doi:10.1111/cdev.12631. [RAT]
Norenzayan, A., Shariff, A. F., Gervais, W. M., Willard, A. K., McNamara, R. A.,
Slingerland, E. & Henrich, J. (2016) The cultural evolu tion of prosocial religions.
Behavioral and Brain Sciences 39, E1. https://doi.org/10.1017/S0140525X14001356.
[EEB]
Nowak, M. (2006) Five rules for the evolution of cooperation. Science 314:156063. [PP]
Noyes, A. & Dunham, Y. (2017) Mutual intentions as a causal framework for
social groups. Cognition 162:13342. [aMT]
Nucci, L. & Weber, E. K. (1995) Social interactions in the home and the development of
young childrens conceptions of the personal. Child Development 66(5):143852.
[MK]
Ohtsubo, Y. (2007) Perceived intentionality intensifies blameworthiness of negative
behaviors: Blame-praise asymmetry in intensification effect. Japanese Psychological
Research 49:10010. [RAA]
Over, H. (2018, April) The influence of group membership on young children
s
prosocial behaviour. Current Opinion in Psychology 20:1720. https://doi.org/10.
1016/j.copsyc.2017.08.005. [LC, aMT]
Over, H., Vaish, A. & Tomasello, M. (2016, Oct.Dec.) Do young children accept respon-
sibility for the negative actions of ingroup members? Cognitive Development 40:2432.
https://doi.org/10.1016/j.cogdev.2016.08.004. [LC, aMT]
Parfit, D. (2011) On what matters: Vol.1. Oxford University Press. [DO]
Pea, R. D. (1982) Origins of verbal logic: Spontaneous denials by two-and three-year olds.
Journal of Child Language, 9(3):597626. [PHL]
Perner, J. & Roessler, J. (2010) Teleology and causal reasoning in childrens theory of
mind. In: Causing human action: New perspectives on the causal theory of action,
ed. J. Aguilar & A. Buckareff, pp. 199228. MIT Press. [CK]
Pesch, A. & Koenig, M. A. (2018) Varieties of trust in preschoolers learning and
practical decisions. PLOS ONE 13(8):e0202506. [PHL]
Petersen, G. (2000) Indigenous island empires: Yap and Tonga considered. Journal of
Pacific History 35:527. [AB]
Pettit, P. (2018a) The birth of ethics: Reconstructing the role and nature of morality.
Oxford University Press. [rMT, PP]
References/Tomasello: The moral psychology of obligation 55
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Pettit, P. (2018b) Naturalizing Tomasellos history of morality. Philosophical Psychology
31:72235. [PP]
Piaget, J. (1932) Moral judgment of the child. Free Press. (1965; original work published in
1932). [MK, aMT, RAT, JIMC]
Piaget, J. (1965) The moral judgment of the child. Free Press. (Original work published in
1932). [JIMC]
Pizarro, D., Uhlm ann, E. & Salovey, P. (2003) Asymmetry in judgments of moral blame
and praise: The role of perceived metadesires. Psychological Science 14(3):26772.
[RAA]
Powell, L. J. & Spelke, E. S. (2013) Preverbal infants expect members of social groups to
act alike. Proceedings of the National Academy of Sciences 110(41):E396572. [ZL]
Prasada, S. & Dillingham, E. M. (2009) Representation of principled connections: A win-
dow onto the formal aspect of common sense conception. Cognitive Science 33
(3):40148. https://doi.org/10.1111/j.1551-6709.2009.01018.x. [LC]
Quinn, P. C., Yahr, J., Kuhn, A., Slater, A. M. & Pascalis, O. (2002) Representation of the
gender of human faces by infants: A preference for female. Perception 31(9):110921.
https://doi.org/10.1 068/p3331. [LC]
Rai, S. T. & Fiske, A. P. (2011) Moral psychology is relationship regulation: Moral motives
for unity, hierarchy, equality, and proportionality. Psychological Review 118(1):5775.
[MSC]
Rakoczy, H., Kaufman, M. & Lohse, K. (2016) Young children understand the normative
force of standards of equal resource distribution. Journal of Experimental Child
Psychology 150:396403. [aMT]
Rakoczy, H. & Tomasello, M. (2009) Done wrong or said wrong? Young children under-
stand the normative directions of fit of different speech acts. Cognition 113(2):20512.
[PHL]
Rakoczy, H., Warneken, F. & Tomasello, M. (2007) This way!, No! That way!”–
3-year-olds know that two people can have mutually incompatible desires. Cognitive
Development 22(1):4768. [CK]
Rakoczy, H., Warneken, F. & Tomasello, M. (2008) The sources of normativity: Young
childrens awareness of the normative structure of games. Developmental Psychology
44(3):87581. [KB, aMT]
Reddy, R. B. & Mitani, J. C. (2019) Social relationships and caregiving behavior between
recently orphaned chimpanzee siblings. Primates 60
(5):389400. [RBR]
Reis, H. T. (2008) Reinvigorating the concept of situation in social psychology. Personality
and Social Psychology Review 12(4):31129. [MSC]
Rekers, Y., Haun, D. & Tomasello, M. (2011) Children, but not chimpanzees, prefer to
forage collaboratively. Current Biology 21:175658. [KB, aMT]
Rest, J. R. (1986) Moral development: Advances in research and theory. Praeger. [JBH]
Rhodes, M. (2012) Naïve theories of social groups. Child Development 83(6):190016.
https://doi.org/10.1 111/j.1467-8624.2012.01835.x. [LC, MR, aMT]
Rhodes, M. (2013) How two intuitive theories shape the development of
social categorization. Child Development Perspectives 7(1):1216. https://doi.org/10.
1111/cdep.12007. [LC]
Rhodes, M. (2014) Childrens explanations as a window into their intuitive theories of the
social world. Cognitive Science 38:168797. [aMT]
Rhodes, M. & Chalik, L. (2013) Social categories as markers of intrinsic interpersonal
obligations. Psychological Science 24(6):9991006. doi:10.1177/0956797612466267.
[MK, MR, aMT]
Rhodes, M., Leslie, S. J., Bianchi, L. & Chalik, L. (2018) The role of generic language in the
early development of social categorization. Child Development 89(1):14855. https://
doi.org/10.1111/cdev.12714. [LC]
Rhodes, M. & Wellman, H. M. (2017, October) Moral learning as intuitive
theory revision. Cognition 167:191200. [RBR, aMT]
Richerson, P., Baldini, R., Bell, A. V., Demps, K., Frost, K., Hillis, V., Mathew, S., Newton,
E. K., Naar, N., Newson, L., Ross, C., Smaldino, P. E., Waring, T. M. & Zefferman, M.
(2016) Cultural group selection plays and essential role in explaining human cooper-
ation: A sketch of the evidence. Behavioral and Brain Scien ces 39:168. [BF]
Rizzo, M. T., Cooley, S., Elenbaas, L. & Killen, M. (2018) Young childrens inclusion deci-
sions in moral and social-conventional group norm contexts. Journal of Experimental
Child Psychology 165:1936. doi:10.1016/j.jecp.2017.05.006. [MK]
Roberts, S. O., Gelman, S. A. & Ho, A. K. (2017) So it is, so it shall be: Group regularities
license childrens prescriptive judgments. Cognitive Science 41:576600.
https://doi.
org/10.1111/cogs.12443. [MR]
Roccas, S. & Brewer, M. B. (2002) Social identity complexity. Personality and Social
Psychology Review 6(2):88106. [JBH]
Rochat, P., Dias, M. D., Liping, G., Broesch, T., Passos-Ferreira, C., Winning, A. & Berg,
B. (2009) Fairness in distributive justice by 3-and 5-year-olds across seven cultures.
Journal of Cross-Cultural Psychology 40:41642. [AS]
Rochat, P., Robbins, E., Passos-Ferreria, C., Donato Oliva, A., Dias, M. D. G. & Guo, L.
(2014) Ownership reasoning in children across cultures. Cognition 132(3):47184.
doi:10.1016/j.cognition.2014.04 .014. [MK]
Roese, N. J. & Olson, J. M. (1997) Counterfactual thinking: The intersection of affect
and function. Advances in Experimental Social Psychology 29:159. [RAA]
Ronfard, S., Nelson, L., Dunham, Y. & Blake, P. R. (2019) How children use accuracy
information to infer informant intentions and to make reward decisions. Journal of
Experimental Child Psychology 177:10018. doi:10.1016/j.jecp.2018.07.017. [PHL]
Ross, A. (1986) Why do we believe what we are told? Ratio 28 (1):6988. [PHL]
Ross, H. & den Bak-Lammers, I. (1998) Consistency and change in childrens tattling on
their siblings: Childrens perspectives on the moral rules and procedures in family life.
Social Development 7:275300. [KB]
Ross, H. S., Friedman, O. & Field, A. (2014) Toddlers assert and acknowledge
ownership rights. Social Development 24(2):34156. https://doi.org/10.1111/sode.
12101. [MK]
Rotella, A., Jung, J., Chinn, C. & Barclay, P. (in preparation) Observation and moral ambi-
guity matter: A meta-analysis on moral licensing. [AR]
Rottman, J. & Kelemen, D. (2012) Aliens behaving badly: Childrens acquisition of novel
purity-based morals. Cognition 124(3):35660. https://doi.org/10.1016/j.cognition.
2012.06.001. [SB-D]
Rottman, J., Young, L. & Kelemen, D. (2017) The impact of testimony on childrens mor-
alization of novel actions. Emotion 17(5):81127. https://doi.org/10.1037/emo0000276.
[SB-D]
Rousseau, D. M., Sitkin, S. B., Burt, R. & Camerer, C. (1998) Not so different after all: A
cross-discipline view of trust. Academy of Management Review 23(3):393
404. [DD]
Rutland, A. & Killen, M. (2015) A developmental science approach to reducing prejudice
and social exclusion: Intergroup processes, social-cognitive development, and moral
reasoning. Social Issues and Policy Review 9(1):12154. doi:10.1111/sipr.12012. [MK]
Rutland, A., Mulvey, K. L., Hitti, A., Abrams, D. & Killen, M. (2015) When does the
in-group like the out-group? Bias among children as a function of group norms.
Psychological Science 26(6):83442. doi:10.1177/0956797615572758. [MK]
Scanlon, T. (1998) What we owe to each other. Belknap Press of Harvard University Press.
[aMT]
Schaefer, M., Haun, D. & Tomasello, M. (2015) Fair is not fair everywhere. Psychological
Science 26:12521260. [aMT]
Schlösser, T., Fetchenhauer, D. & Dunning, D. (2016) Against all odds? The emotional
dynamics underlying trust. Decision 3(3):21630. [DD]
Schlösser, T., Mensching, O., Dunning, D. & Fetchenhauer, D. (2015) Trust and rational-
ity: Shifting normative analyses in risks involving other people versus nature. Social
Cognition 33(5):45982. doi:10.1521/soco.2015.33.5.459. [DD]
Schmidt, M. F. H., Butler, L. P., Heinz, J. & Tomasello, M. (2016a) Young children see a
single action and infer a social norm. Psychological Science 27:136070. [aMT]
Schmidt, M. F. H., Cabrera, I. & Tomasello, M. (2017) Childrens developing
metaethical judgments. Journal of Experimental Child Psychology 164:16377. [aMT]
Schmidt, M. F. H., Rakoczy, H. & Tomasello, M. (2011) Young children attribute norma-
tivity to novel actions without pedagogy or normative language. Developmental Science
14:53039. [aMT]
Schmidt, M. F. H., Rakoczy, H. & Tomasello, M. (2012) Young children enforce social
norms selectively depending on the violators group affiliation. Cognition 124
(3):32533. [HR, aMT]
Schmidt, M. F. H., Rakoczy, H. & Tomasello, M. (2016b) Young children understand the
role of agreement in establishing arbitrary norms but unanimity is key. Child
Development 87(2):61226. [aMT]
Schmidt, M. F. H., Rakoczy, H. & Tomasello, M. (2019) Eighteen-month-old infants cor-
rect non-conforming actions by others. Infancy 24(4):61335. [ZL]
Schmidt, M. F. H. & Tomasello, M. (2012) Young children enforce social norms. Current
Directions in Psychological Science 21(4):232
36. [aMT]
Schniter, E., Sheremeta, R. M. & Sznycer, D. (2012) Building and rebuilding trust with
promises and apologies. Journal of Economic Behavior & Organization 94:24256.
[AR]
Searle, J. R. (1995a) The construction of social reality. Free Press. [aMT]
Searle, J. R. (1995b) The construction of social reality. Penguin. [ZL]
Searle, J. R. (2010) Making the social world: The structure of human civilization. Oxford
University Press. [ZL, aMT]
Sellars, W. (1962) Philosophy and the scientific image of man. In: Frontiers of science and
philosophy, ed. R. Colodny, pp. 3578. University of Pittsburgh Press. [HR]
Sen, A. (2009) The idea of justice. Harvard University Press. [MK]
Shaw, A., Barakzai, A. & Keysar, B. (in press) When negative reciprocity is more fair than
positive reciprocity.Cognitive Science. [AS]
Shaw, A., DeScioli, P. & Olson, K. R. (2012) Fairness versus favoritism in children.
Evolution and Human Behavior 33 :73645. [AS]
Shaw, A. & Olson, K. (2014) Fairness as partiality aversion: The development of
procedural justice. Journal of Experimental Child Psychology 119:4053. [aMT]
Shteynberg, G. (2012) Intersubjectivity, agency, and idiosyncratic identity. Journal of the
Anthropological Society of Oxford 4(1):121. [JBH]
Shteynberg, G. (2015) Shared attention. Perspectives on Psychological Science 10(5):579
90. [JBH]
Shteynberg, G. (2018) A collective perspective: Shared attention and the mind. Current
Opinion in Psychology 23(1):9397. [JBH]
56 References/Tomasello: The moral psychology of obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Shun, K.-L. & Wong, D. B. (2004) Introduction. In: Confucian ethics: A comparative study
of self, autonomy, and community, ed. K.-L. Shun & D. B. Wong, pp. 17. Cambridge
University Press. [EEB]
Shwe, H. I. & Markman, E. M. (1997) Young childrens appreciation of the mental impact
of their communicative signals. Developmental Psychology 33(4):63036. [PHL]
Simpson, A. & Laham, S. M. (2015, February) Individual differences in relational con-
strual are associated with variability in moral judgment. Personality and Individual
Differences 74:4954. [MSC]
Simpson, A., Laham, S. M. & Fiske, A. P. (2016) Wrongness in different relationships:
Relational context effects on moral judgment. The Journal of Social Psychology 156
(6):594609. [MSC]
Siposova, B., Tomasello, M. & Carpenter, M. (2018) Communicative eye contact signals a
commitment to cooperate for young children. Cognition 179:192201. [arMT]
Smetana, J.G., Rote, W., Ja mbon, M., Tasopoulos-Chan, M., Villalobos, M. & Comer, J.
(2012) Developmental changes and individual differences in young childrens moral
judgments. Child Development 83(2):68396. doi:10.1111/j.1467-8624.2011.01714.x.
[MK]
Smith, A. (2013) Moral blame and moral protest. In: Blame: Its nature and norms, ed. D.
J. Coates & N. A. Tognazzini, pp. 2748. Oxford University Press. [aMT]
Song, R., Over, H. & Carpenter, M. (2015) Children draw more affiliative pictures follow-
ing priming with third-party ostracism. Developmental Psychology 51(6):83140.
doi:10.1037/a0039176. [MK]
Sorce, J. F., Emde, R. N., Campos, J. J. & Klinnert, M. D. (1985) Maternal emotional sig-
naling: Its effect on the visual cliff behavior of 1-year-olds. Developmental Psychology
21(1):195200. https://doi.org/10.1037/0012-1649.21.1.195. [SB-D]
Spaemann, R. (2006) Persons: The difference between someone and something. Oxford
University Press. (Original work published in 1996). [JIMC]
Spivak, A. (2016) Dynamics of young childrens socially adaptive resolutions of
peer conflict. Social Development 25(1):21231. doi:10.1111/sode.12135. [MK]
Starmans, C. & Bloom, P. (2016) When the spirit is willing, but the flesh is weak:
Developmental differences in judgments about inner moral conflict. Psychological
Science 27 :14981506. [AS]
Steger, M. F., Kashdan, T. B. & Oishi, S. (2008) Being good by doing good: Daily eudai-
monic activity and well-being. Journal of Research in Personality 42(1):2242. https://
doi.org/10.1016/j.jrp.2007.03.004. [EEB]
Sterponi, L. (2004) Construction of rules, accountability and moral identity by high-
functioning children with auti sm. Discourse Studies 6(2):20728. [ZL]
Stewart, A. (2016) The Trolley problem and me: A study of identity and its effect on
moral decision-making. Unpublished MSc Dissertation, Department of
Psychological and Behavioural Science, London School of Economics. [BF]
Stewart, A., Franks, B. & I. Gleibs (2019, in preparation) The divided we and moral
choices: How shifts within an identity can change decision making. Department of
Psychological and Behavioural Science, London School of Economics. [BF]
Stivers, T., Mondada, L. & Steensig, J., eds. (2011) The morality of knowledge in conver-
sation. Cambridge University Press. [ZL]
Storbeck, J. & Clore, G. L. (2008) Affective arousal as information: How affective arousal
influences judgments, learning, and memory. Social and Personality Psychology
Compass 2(5):182443. https://doi.org/10.1111/j.1751-9004.2008.00138.x. [SB-D]
Strawson, P. F. (1962) Freedom and resentment. Proceedings of the British Academy 48 :1
25. [aMT]
Strawson, P. F. (1968) Freedom and resentment. In: Studies in the philosophy of thought
and action. Oxford University Press. [SD]
Sylwester, K. & Roberts, G. (2010) Cooperators benefit through reputation-based partner
choice in economic games. Biology Letters 6(5):65962. [AR]
Sylwester, K. & Roberts, G. (2013) Reputation-based partner choice is an effective alter-
native to indirect reciprocity in solving social dilemmas. Evolution and Human
Behavior 34(3):2016. [AR]
Sznycer, D., Tooby, J., Cosmides, L., Porat, R., Shalvi, S. & Halperin, E. (2016) Shame
closely tracks the threat of devaluation by others, even across cultures. Proceedings
of the National Academy of Sciences 113(10):262530. [AR]
Sznycer, D., Xygalatas, D., Agey, E., Alami, S., An, X. F., Ananyeva, K. I., Atkinson, Q. D.,
Broitmam, B. R., Cotne, T.J., Flores, C., Fuskushima, S., Hitokoto, H., Kharitonov, A.
N., Onyishi, C. N., Onyishi, I.E., Romero, P. P., Schrock, J. S., Snodgrass, J., Sugiyaman,
L. S., Takemura, K., Townsend, C., Zhuang, J., Aktipis, C. A., Cronk, L., Cosmides, L.
& Tooby, J. (2018) Cross-cultural invariances in the architecture of shame. Proceedings
of the National Academy of Sciences 115(39):9702707. [AR]
Tajfel, H. & Turner, J. C. (1986) The social identity theory of inter-group behavior. In:
Psychology of intergroup relations, ed. S. Worchel & W. Austin, pp. 724.
Nelson-Hall. [MK]
Tamir, D. I. & Mitchell, J. P. (2012) Disclosing information about the self is intrinsically
rewarding. Proceedings of the National Academy of Sciences 109:803843. [HMM]
Telzer, E. H., Fuligni, A. J., Lieberman, M. D. & Galván, A. (2014) Neural sensitivity to
eudaimonic and hedonic rewards differentially predict adolescent depressive symp-
toms over time. Proceedings of the National Academy of Sciences 111(18):660005.
https://doi.org/10.1073/pnas.1323014111. [EEB]
Tepe, B. & Adymi-Karakulak, A. (2018) Beyond harmfulness and impurity: Moral wrong-
ness as a violation of relational motivations. Journal of Personality and Social
Psychology 117(2):31037. [MSC]
Terry, D. J., Hogg, M. A. & White, K. M. (1999) The theory of planned behaviour: self-
identity, social identity and group norms. British Journal of Social Psychology 38
(3):22544. [JBH]
Thompson, M. (2004) What is it to wrong someone?: A puzzle about justice. In: Reason
and value: Themes from the philosophy of Joseph Raz, ed. J. Wallace, P. Pettit,
S. Scheffler & M. Smith. Oxford University Press. [aMT]
Thompson, R. A. (2012) Wither the preconventional child? Toward a life-span moral
development theory. Child Development Perspectives 6(4):42329. doi:10.1111/j.
1750-8606.2012.00245.x. [RAT]
Thompson, R. A. (2019) Early moral development and attachment theory. In: The Oxford
handbook of parenting and moral development, ed. D. Laible, L. M. Padilla-Walker &
G. Carlo, pp. 2139. Oxford University Press. [RAT]
Thomson, J. J. (1985) The trolley problem. Yale Law Journal 94:13951415. [BF]
Ting, F., Dawkins, M. B., Stavans, M. & Baillargeon, R. (2019) Principles and concepts in
early moral cognition. In: The social brain: A developmental perspective, ed. J. Decety.
MIT Press. [MR]
Ting, F., He, Z. & Baillargeon, R. (2019) Toddlers and infants expect individuals to refrain
from helping an ingroup victims aggressor. Proceedings of the National Academy of
Sciences 116(13):602534. https://doi.org/10.1073/pnas.1817849116. [LC]
Tomasello, M. (1988) The role of joint attentional processes in early language develop-
ment. Language Sciences 10(1):6988. doi:10.1016/0388-0001(88)90006-X. [ZL]
Tomasello, M. (2014a) A natural history of human thinking. Harvard University Press.
[MG, aMT]
Tomasello, M. (2014b) The ultra-social animal. European Journal of Social Psychology 44
(3):18794. [ZL]
Tomasello, M. (2016a) A natural history of human morality. Harvard University Press.
[SB-D, MG, PP, arMT]
Tomasello, M. (2016b) Cultural learning redux. Child Development 87(3):64353. https://
doi.org/10.1111/cdev.12499. [EEB]
Tomasello, M. (2018) The normative turn in early moral development.
Human
Development (Special Issue) 61:24863. [aMT]
Tomasello, M. (2019) Becoming human: A theory of ontogeny. Harvard University Press.
doi:10.4159/9780674988651. [JC, aMT]
Tomasello, M., Carpenter, M., Call, J., Behne, T. & Moll, H. (2005) Understanding and
sharing intentions: The origins of cultural cognition. Behavioral and Brain Sciences
28(5):67591. doi: 10.1017/s0140525X05000129. [JC, aMT]
Tomasello, M., Kruger, A. C. & Ratner, H. H. (1993) Cultural learning. Behavioral and
Brain Sciences 16(3):495511. https://doi.org/10.1017/S0140525X0003123X. [EEB]
Tomasello, M., Melis, A. P., Tennie, C., Wyman, E. & Herrmann, E. (2012) Two key steps
in the evolution of human cooperation: The interdependence hypothesis. Current
Anthropology 53(6):67392. [rMT]
Tomasello, M. & Vaish, A. (201 3) Origins of human cooperation and morality. Annual
Review of Psychology 64(1):23155. [ZL]
Tripathi, R., Cervone, D. & Savani, K. (2018) Are the motivational effects of autonomy-
supportive conditions universal? Contrasting results among Indians and Americans.
Personality and Social Psychology Bulletin 44(9):12871301. https://doi.org/10.1177/
0146167218764663. [EEB]
Turiel, E. (1983) The development of social knowledge: Morality and convention.
Cambridge University Press. [HR]
Turiel, E. (2002) The culture of morality: Social development, context, and conflict.
Cambridge University Press. [MK]
Turiel, E. (2007) The development of morality. In: Handbook of child psychology, vol. 3:
Social, emotional, and personality development, ed. W. Damon, R. M. Lerner, &
N. Eisenberg, pp. 789857. Wiley. doi:10.1002/9780470147658.chpsy0313 [aMT]
Turiel, E. & Dahl, A. (2019) The development of domains of moral and conventional
norms, coordination in decision-making, and the implication of social opposition.
In: The normative animal: On the anthropological significance of social, moral, and lin-
guistic norms, ed. K. Bayertz & N. Roughley, pp. 195213. Oxford University Press.
[MK]
Turnbull, W. (2003) Language in action: Psychological models of conversation. Psychology
Press. [JIMC]
Turner, J. C., Hogg, M. A., Oakes, P. J., Reicher, S. D. & Wetherell, M. S. (1987)
Rediscovering the social group: A self-categorization theory. Basil Blackwell. [AS]
Ulber, J. & Tomasello, M. (2017) Young children, but not chimpanzees, are averse to dis-
advantageous and advantageous inequities. Journal of Experimental Child Psychology
155:4866. [aMT]
Ullman-Margalit, E. (1977) The emergence of norms. Oxford University Press. [WS-A]
Vaish, A., Carpenter, M. & Tomasello, M. (2016) The early emergence of guilt-motivated
prosocial behavior. Child Development
87:177282. [aMT]
Van Lawick-Goodall, J. (1968) The behavior of free-living chimpanzees in the
Gombe Stream Reserve. Animal Behavior Monographs 1(Part 3):161311, IN1
IN12. [RBR]
References/Tomasello: The moral psychology of obligation 57
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at
Van Tongeren, D. R., Newbound, H. & Johnson, E. (2016) The interactive effects of reli-
giosity and priming religion following recall of a values violation. Sexual Addiction &
Compulsivity 23(23):21124. [BF]
Van Tongeren, D. R., Welch, R. D., Davis, D. E., Green, J. D. & Worthington Jr., E. L.
(2012) Priming virtue: Forgiveness and justice elicit divergent moral judgments
among religious individuals. The Journal of Positive Psychology 7:40515. [BF]
Wainryb, C., Brehl, B. & Matwin, S. (2005) Being hurt and hurting others: Childrens
narrative accounts and moral judgments of their own interpersonal conflicts.
Monographs of the Society for Research in Child Development 70(3):1125. Wiley-
Blackwell. [MK]
Walker, R., Hill, K., Kaplan, H. & McMillan, G. (2002) Age dependency of hunting ability
among the Ache of eastern Paraguay. Journal of Human Evolution 42(6):63957. [AK]
Wallace, J. (2019) The moral nexus. Princeton University Press. [aMT]
Wallace, R. J. (1994) Responsibility and the moral sentiments. Harvard University Press.
[aMT]
Walster, E., Walster, G. W. & Berscheid, E. (1978) Equity: Theory and research. Allyn &
Bacon. [MSC]
Warneken, F., Chen, F. & Tomasello, M. (2006) Cooperative Activities in Young Children
and Chimpanzees. Child Development 77(3):64063. [aMT]
Warneken, F., Gräfenhain, M. & Tomasello, M. (2012) Collaborative partner or social
tool? New evidence for young childrens understanding of joint intentions in
collaborative activities. Developmental Science 15:5461. [aMT]
Warneken, F., Lohse, K., Melis, A. P. & Tomasello, M. (2011) Young children share the
spoils after collaboration. Psychological Science 22(2):26773. doi:10.1177/
0956797610395392. [JC, aMT]
Warneken, F. & Tomasello, M. (2013) The emergence of contingent reciprocity in
young children. Journal of Experimental Child Psychology 116 :33850. [aMT]
Waytz, A., Dungan, J. & Young, L. (2013) The whistleblowers dilemma and the fairness
loyalty tradeoff. Journal of Experimental Social Psychology 49:102733. [AS]
Wellman, H. & Gelman, S. A. (1992) Cognitive development: Foundational theories of
core domains. Annual Review of Psychology 43(1):33775. https://doi.org/10.1146/
annurev.psych.43.1.337. [LC]
Wellman, H. M., Song, J-H. & Peskin-Shepherd, H. (2019) Childrens early awareness of
comprehension as evident in their spontaneous corrections of speech errors.
Child
Development 90(1):196209. [PHL]
Wilks, M., Kirby, J. & Nielsen, M. (2018) Developmental changes in young childrens
willingness to copy the antisocial actions of ingroup members in a minimal
group context. Developmental Psychology 55(4):70921. [PHL]
Williams, B. (1981) Practical necessity. In: Moral luck: Philosophical papers 19731980,
pp. 12432. Cambridge University Press. [DO]
Williams, B. (1993) Moral incapacity. Proceedings of the Aristotelian Society 3:5970. [DO]
Wittig, M., Jensen, K. & Tomasello, M. (2013) 5-year-olds understand fair as equal in a
mini-ultimatum game. Journal of Experimental Child Psychology 116(2):32437.
[aMT]
Wright, J. C. & Bartsch, K. (2008) Portraits of early moral sensibility in two childrens
everyday conversations. Merrill-Palmer Quarterly 54(1):5685. [KB]
Wu, J., Balliet, D. & Van Lange, P. A. (2016) Gossip versus punishment: The efficiency of
reputation to promote and maintain cooperation. Scientific Reports 6:23919. [AR]
Yucel, M., Hepach, R. & Vaish, A. (in press) Young children and adults show differential
arousal to moral and conventional transgressions. Frontiers in Psychology. [SB-D]
58 References/Tomasello: The moral psychology of obligation
https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0140525X19001742
Downloaded from https://www.cambridge.org/core. Max Planck Institute for Evolutionary Anthropology, on 29 May 2020 at 07:10:31, subject to the Cambridge Core terms of use, available at