32189 20210121082903.0 doi 10.1038/srep07843 sideral 89596 ART-2015-89596 eng Cuesta, J.A. Reputation drives cooperative behaviour and network formation in human groups 2015 Access copy available to the general public Unrestricted 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. info:eu-repo/grantAgreement/ES/MINECO/FIS2011-25167 info:eu-repo/grantAgreement/ES/MINECO/FIS2009-09689 info:eu-repo/grantAgreement/EC/FP7/317532/EU/Foundational Research on MULTIlevel comPLEX networks and systems/MULTIPLEX info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 5.228 2015 MULTIDISCIPLINARY SCIENCES 7 / 62 = 0.113 2015 Q1 T1 2.034 2015 Multidisciplinary 2015 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Gracia-Lázaro, C. (orcid)0000-0003-4140-2981 Ferrer, A. (orcid)0000-0002-0895-1893 Moreno, Y. Universidad de Zaragoza Sánchez , A. 2004 405 Universidad de Zaragoza Dpto. Física Teórica Área Física Teórica 5 (2015), - Sci. rep. Scientific Reports 2045-2322 492223 http://zaguan.unizar.es/record/32189/files/texto_completo.pdf Versión publicada 110687 http://zaguan.unizar.es/record/32189/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:32189 articulos driver 2021-01-21-08:16:52 ARTICLE