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dc.contributor.authorHoffman, Moshe H.
dc.contributor.authorYoeli, Erez
dc.contributor.authorNowak, Martin A.
dc.date.accessioned2015-02-05T17:17:12Z
dc.date.issued2015
dc.identifierQuick submit: 2015-02-04T11:47:53-05:00
dc.identifier.citationHoffman, Moshe, Erez Yoeli, and Martin A. Nowak. 2015. “Cooperate Without Looking: Why We Care What People Think and Not Just What They Do.” Proceedings of the National Academy of Sciences (January 26): 201417904. doi:10.1073/pnas.1417904112.en_US
dc.identifier.issn0027-8424en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:13950054
dc.description.abstractEvolutionary game theory typically focuses on actions but ignores motives. Here, we introduce a model that takes into account the motive behind the action. A crucial question is why do we trust people more who cooperate without calculating the costs? We propose a game theory model to explain this phenomenon. One player has the option to “look” at the costs of cooperation, and the other player chooses whether to continue the interaction. If it is occasionally very costly for player 1 to cooperate, but defection is harmful for player 2, then cooperation without looking is a subgame perfect equilibrium. This behavior also emerges in population-based processes of learning or evolution. Our theory illuminates a number of key phenomena of human interactions: authentic altruism, why people cooperate intuitively, one-shot cooperation, why friends do not keep track of favors, why we admire principled people, Kant’s second formulation of the Categorical Imperative, taboos, and love.en_US
dc.description.sponsorshipMathematicsen_US
dc.language.isoen_USen_US
dc.publisherProceedings of the National Academy of Sciencesen_US
dc.relation.isversionofdoi:10.1073/pnas.1417904112en_US
dash.licenseLAA
dc.subjectgame theoryen_US
dc.subjectevolutionen_US
dc.subjectemotionen_US
dc.subjectmotiveen_US
dc.subjectcooperationen_US
dc.titleCooperate without looking: Why we care what people think and not just what they doen_US
dc.typeJournal Articleen_US
dc.date.updated2015-02-04T16:47:53Z
dc.description.versionVersion of Recorden_US
dc.rights.holderMoshe Hoffman, Erez Yoeli, Martin A. Nowak
dc.relation.journalProc Natl Acad Sci USAen_US
dash.depositing.authorNowak, Martin A.
dash.waiver2015-02-02
dc.date.available2015-02-05T17:17:12Z
dc.identifier.doi10.1073/pnas.1417904112*
dash.contributor.affiliatedYoeli, Erez
dash.contributor.affiliatedHoffman, Moshe
dash.contributor.affiliatedNowak, Martin


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