Publication: The shared reward dilemma
dc.affiliation.dpto | UC3M. Departamento de Estadística | es |
dc.affiliation.dpto | UC3M. Departamento de Matemáticas | es |
dc.affiliation.grupoinv | UC3M. Grupo de Investigación: Interdisciplinar de Sistemas Complejos (GISC) | es |
dc.contributor.author | Cuesta, José A. | |
dc.contributor.author | Jiménez Recaredo, Raúl José | |
dc.contributor.author | Sánchez, Angel | |
dc.contributor.author | Lugo, Haydeé | |
dc.date.accessioned | 2010-03-09T14:07:58Z | |
dc.date.available | 2010-03-09T14:07:58Z | |
dc.date.issued | 2008-03-21 | |
dc.description | 11 pages, 5 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/0707.2587 | |
dc.description | Final publisher version available Open Access at: http://gisc.uc3m.es/~cuesta/papers-year.html | |
dc.description.abstract | One of the most direct human mechanisms of promoting cooperation is rewarding it. We study the effect of sharing a reward among cooperators in the most stringent form of social dilemma, namely the prisoner's dilemma (PD). Specifically, for a group of players that collect payoffs by playing a pairwise PD game with their partners, we consider an external entity that distributes a fixed reward equally among all cooperators. Thus, individuals confront a new dilemma: on the one hand, they may be inclined to choose the shared reward despite the possibility of being exploited by defectors; on the other hand, if too many players do that, cooperators will obtain a poor reward and defectors will outperform them. By appropriately tuning the amount to be shared a vast variety of scenarios arises, including the traditional ones in the study of cooperation as well as more complex situations where unexpected behavior can occur. We provide a complete classification of the equilibria of the n-player game as well as of its evolutionary dynamics. | |
dc.description.sponsorship | This work is partially supported by Ministerio de Educación y Ciencia (Spain) under Grants Ingenio-MATHEMATICA, MOSAICO, and NAN2004-9087-C03-03 and by Comunidad de Madrid (Spain) under Grants SIMUMAT-CM and MOSSNOHO-CM. | |
dc.description.status | Publicado | |
dc.format.mimetype | application/pdf | |
dc.identifier.bibliographicCitation | Journal of Theoretical Biology, 2008, vol. 251, n. 2, p. 253-263 | |
dc.identifier.doi | 10.1016/j.jtbi.2007.11.022 | |
dc.identifier.issn | 0022-5193 | |
dc.identifier.uri | https://hdl.handle.net/10016/7199 | |
dc.language.iso | eng | |
dc.publisher | Elsevier | |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.jtbi.2007.11.022 | |
dc.rights.accessRights | open access | |
dc.subject.eciencia | Matemáticas | |
dc.subject.other | Reward | |
dc.subject.other | Social dilemma | |
dc.subject.other | Prisoner's dilemma | |
dc.subject.other | n-Player game | |
dc.subject.other | Cooperation | |
dc.subject.other | Evolutionary dynamics | |
dc.subject.other | Nash equilibria | |
dc.title | The shared reward dilemma | |
dc.type | research article | * |
dc.type.review | PeerReviewed | |
dspace.entity.type | Publication |
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