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Recordatorio: Lance Agustin Fesibiush te ha invitado a unirte a Facebook...

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facebook Hola: Esta persona te ha enviado una solicitud de amistad en Facebook: Lance Agustin Fesibiush Invitación enviada: Nov 2, 2010   Otras personas que están en Facebook y que tal vez conozcas: Marta Eva Maronna Ferrer   Facebook es ideal para mantenerte en contacto con tus amigos, publicar fotos, vídeos y crear eventos. Pero antes que nada, tienes que unirte: regístrate hoy para crear tu perfil y conectar con la gente que conoces. Gracias, El equipo de Facebook Facebook es gratis y cualquiera puede unirse. Regístrate Para registrarte en Facebook, sigue este enlace: http://www.facebook.com/r.php?re=ca8900234f88df61e06acf5774345634&mid=35028bfG5af37aaaafd1G0G46 Este mensaje estaba destinado a complaciencia.elvagoeselbogui@blogger.com. Si no quieres recibir este tipo de mensajes de Facebook, haz clic aquí para borrar tu nombre de la lista de personas suscritas. Facebook, Inc. P.O. Box 10005, Palo Alto, CA 94303

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The evolution of ethnocentrism

Journal of Conflict Resolution
Volume 50, Issue 6, December 2006, Pages 926-936

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ISSN: 00220027 DOI: 10.1177/0022002706293470 Document Type: Article Source Type: Journal

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The evolution of ethnocentrism

Hammond, R.A.^a , Axelrod, R.^b

^a Department of Political Science, University of Michigan, Ann Arbor
^b Gerald R. Ford School of Public Policy, University of Michigan, Ann Arbor

Abstract

Ethnocentrism is a nearly universal syndrome of attitudes and behaviors, typically including in-group favoritism. Empirical evidence suggests that a predisposition to favor in-groups can be easily triggered by even arbitrary group distinctions and that preferential cooperation within groups occurs even when it is individually costly. The authors study the emergence and robustness of ethnocentric behaviors of in-group favoritism, using an agent-based evolutionary model. They show that such behaviors can become widespread under a broad range of conditions and can support very high levels of cooperation, even in one-move prisoner's dilemma games. When cooperation is especially costly to individuals, the authors show how ethnocentrism itself can be necessary to sustain cooperation. © 2006 Sage Publications.

Language of original document

English

Author keywords

Agent-based models; Contingent cooperation; Ethnocentrism; Evolutionary models; In-group favoritism

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