Pairwise Comparison and Selection Temperature in Evolutionary Game Dynamics

Pairwise Comparison and Selection Temperature in Evolutionary Game Dynamics

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Pairwise Comparison and Selection Temperature in Evolutionary Game Dynamics

dc.contributor.author	Traulsen, Arne
dc.contributor.author	Pacheco, Jorge M.
dc.contributor.author	Nowak, Martin A.
dc.date.accessioned	2010-05-05T13:47:15Z
dc.date.issued	2007
dc.identifier.citation	Traulsen, Arne, Jorge M Pacheco, Martin A. Nowak. 2007. Pairwise comparison and selection temperature in evolutionary game dynamics. Journal of Theoretical Biology 246(3): 522-529.	en_US
dc.identifier.issn	0022-5193	en_US
dc.identifier.uri	http://nrs.harvard.edu/urn-3:HUL.InstRepos:4054436
dc.description.abstract	Recently, the frequency-dependent Moran process has been introduced in order to describe evolutionary game dynamics in finite populations. Here, an alternative to this process is investigated that is based on pairwise comparison between two individuals. We follow a long tradition in the physics community and introduce a temperature (of selection) to account for stochastic effects. We calculate the fixation probabilities and fixation times for any symmetric 2×2 game, for any intensity of selection and any initial number of mutants. The temperature can be used to gauge continuously from neutral drift to the extreme selection intensity known as imitation dynamics. For some payoff matrices the distribution of fixation times can become so broad that the average value is no longer very meaningful.	en_US
dc.description.sponsorship	Mathematics	en_US
dc.description.sponsorship	Organismic and Evolutionary Biology	en_US
dc.language.iso	en_US	en_US
dc.publisher	Elsevier	en_US
dc.relation.isversionof	doi:10.1016/j.jtbi.2007.01.002	en_US
dash.license	LAA
dc.subject	stochastic effects	en_US
dc.subject	finite populations	en_US
dc.subject	evolutionary game theory	en_US
dc.title	Pairwise Comparison and Selection Temperature in Evolutionary Game Dynamics	en_US
dc.type	Journal Article	en_US
dc.description.version	Accepted Manuscript	en_US
dc.relation.journal	Journal of Theoretical Biology	en_US
dash.depositing.author	Nowak, Martin A.
dc.date.available	2010-05-05T13:47:15Z