Stochastic evolutionary selection in finite populations

Yanfang Zhang, Shue Mei and Weijun Zhong

Economic Modelling, 2011, vol. 28, issue 6, 2743-2747

Abstract: We primarily focus on a wide range of stochastic evolutionary game dynamics between two strategies which are characterized by a condition we call monotonicity: the sign of the difference between the probabilities of increasing and decreasing an A-individual completely depends on the difference of payoffs based on different strategies. When mutations are excluded, we provide sufficient conditions for selection to favor one strategy over the other and necessary conditions for selection to favor or oppose change, respectively. Moreover, we discuss which strategy will be favored in case of rare mutations and give a simple rule to determine evolutionary selection of strategies for large populations under some specific stochastic mutation–selection dynamics.

Keywords: Stochastic evolutionary game dynamics; Finite populations (search for similar items in EconPapers)
JEL-codes: C73 (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecmode:v:28:y:2011:i:6:p:2743-2747

DOI: 10.1016/j.econmod.2011.08.017

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