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Curr Biol. 2006 Jun 6;16(11):R414-5.

Cooperation: close friends and common enemies.

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  • 1Behavioural Ecology Research Group, Department of Biosciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada. crespi@sfu.ca

Abstract

The Prisoner's dilemma game has been a key conceptual tool for analyzing social behavior for over 50 years. A recent study shows how the spatial scale of competition in this game critically determines when cooperation can emerge.

PMID:
16753554
[PubMed - indexed for MEDLINE]
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