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Title:	Pairwise Comparison and Selection Temperature in Evolutionary Game Dynamics
Author:	Traulsen, Arne; Pacheco, Jorge M.; Nowak, Martin A. Note: Order does not necessarily reflect citation order of authors.
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.
Full Text & Related Files:	Nowak_PairwiseComparison.pdf (136.8Kb; PDF)
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.
Published Version:	doi:10.1016/j.jtbi.2007.01.002
Terms of Use:	This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page:	http://nrs.harvard.edu/urn-3:HUL.InstRepos:4054436

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  Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University

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