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dc.contributor.authorGallo, Edoardoen
dc.contributor.authorRiyanto, Yohanes Een
dc.contributor.authorTeh, Tat-Howen
dc.contributor.authorRoy, Nilanjanen
dc.date.accessioned2019-07-15T13:55:34Z
dc.date.available2019-07-15T13:55:34Z
dc.date.issued2019-07-26en
dc.identifier.issn2045-2322
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/294624
dc.description.abstractThe maintenance of cooperative behavior is fundamental for the prosperity of human societies. Empirical studies show that high cooperation is frequently associated with the presence of strong social ties, but they are silent on whether a causal mechanism exists, how it operates, and what features of the social environment are conducive to its emergence. Here we show experimentally that strong ties increase cooperation and welfare by enabling the emergence of a close-knit and strongly bound cooperative elite. Crucially, this cooperative elite is more prevalent in social environments characterized by a large payoff difference between weak and strong ties, and no gradation in the process of strengthening a tie. These features allow cooperative individuals to adopt an all or nothing strategy to tie strengthening based on the well-known mechanism of direct reciprocity: participants become very selective by forming strong ties only with other cooperative individuals and severing ties with everyone else. Once formed, these strong ties are persistent and enhance cooperation. A dichotomous society emerges with cooperators prospering in a close-knit, strongly bound elite, and defectors earning low payoffs in a weakly connected periphery. Methodologically, our set-up provides a framework to investigate the role of the strength of ties in an experimental setting.
dc.description.sponsorshipKeynes Fund (Cambridge). My coauthors have funding from the Singapore Ministry of Education (MOE) Academic Research Fund (AcRF) Tier 2 grant.
dc.format.mediumElectronicen
dc.languageengen
dc.language.isoenen
dc.publisherNature Publishing Group
dc.rightsAll rights reserved
dc.titleStrong links promote the emergence of cooperative elites.en
dc.typeArticle
prism.issueIdentifier1en
prism.publicationDate2019en
prism.publicationNameScientific reportsen
prism.startingPage10857
prism.volume9en
dcterms.dateAccepted2019-07-08en
rioxxterms.versionofrecord10.1038/s41598-019-47278-2en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2019-07-26en
dc.contributor.orcidGallo, Edoardo [0000-0003-1983-5027]
dc.contributor.orcidRiyanto, Yohanes E [0000-0001-7343-4043]
dc.identifier.eissn2045-2322
rioxxterms.typeJournal Article/Reviewen
cam.orpheus.successMon Jun 08 08:19:45 BST 2020 - The item has an open VoR version.*
rioxxterms.freetoread.startdate2100-01-01


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