Reputation drives cooperative behaviour and network formation in human groups

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Show simple item record Cuesta, José A. Gracia-Lázaro, Carlos Ferrer, Alfredo Moreno, Yamir Sánchez, Angel 2015-03-05T13:04:03Z 2015-03-05T13:04:03Z 2015-01-19
dc.identifier.bibliographicCitation Scientific reports, Vol.5, nº 7843 (Jan. 2015), pp.1-3
dc.identifier.issn 2045-2322
dc.description.abstract Cooperativeness is a defining feature of human nature. Theoreticians have suggested several mechanisms to explain this ubiquitous phenomenon, including reciprocity, reputation, and punishment, but the problem is still unsolved. Here we show, through experiments conducted with groups of people playing an iterated Prisoner's Dilemma on a dynamic network, that it is reputation what really fosters cooperation. While this mechanism has already been observed in unstructured populations, we find that it acts equally when interactions are given by a network that players can reconfigure dynamically. Furthermore, our observations reveal that memory also drives the network formation process, and cooperators assort more, with longer link lifetimes, the longer the past actions record. Our analysis demonstrates, for the first time, that reputation can be very well quantified as a weighted mean of the fractions of past cooperative acts and the last action performed. This finding has potential applications in collaborative systems and e-commerce.
dc.description.sponsorship This work was supported in part by MINECO (Spain) through grants PRODIEVO, FIS2011-25167, and FIS2009-09689, by Comunidad de Madrid (Spain) through grant MODELICO-CM, by Comunidad de Aragón (Spain) through a grant to the group FENOL, and by the EU FET Proactive project MULTIPLEX (contract no. 317532).
dc.format.extent 6
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Nature Publishing Group
dc.rights © 2015, Nature Publishing Group
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.subject.other Promote cooperation
dc.subject.other Prisoner's dilemma
dc.subject.other Evolution
dc.subject.other Punishment
dc.title Reputation drives cooperative behaviour and network formation in human groups
dc.type article
dc.subject.eciencia Antropología
dc.subject.eciencia Biología y Biomedicina
dc.subject.eciencia Matemáticas
dc.identifier.doi 10.1038/srep07843
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. S2009/ESP-1691/MODELICO
dc.relation.projectID Gobierno de España. FIS2011-22449/PRODIEVO
dc.relation.projectID Gobierno de España. FIS2011-25167
dc.relation.projectID Gobierno de España. FIS2009-09689
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/317532
dc.type.version publishedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 7843
dc.identifier.publicationlastpage 6
dc.identifier.publicationtitle Scientific reports
dc.identifier.publicationvolume 5
dc.identifier.uxxi AR/0000016137
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