In evolutionary games the fitness of individuals is not constant but depends on the relative abundance of the various strategies in the population. Here we study general games among n strategies in populations of large but finite size. We explore stochastic evolutionary dynamics under weak selection, but for any mutation rate. We analyze the frequency dependent Moran process in well-mixed populations, but almost identical results are found for the Wright–Fisher and Pairwise Comparison processes. Surprisingly simple conditions specify whether a strategy is more abundant on average than 1/ n , or than another strategy, in the mutation-selection equilibrium. We find one condition that holds for low mutation rate and another condition that holds for high mutation rate. A linear combination of these two conditions holds for any mutation rate. Our results allow a complete characterization of n × n games in the limit of weak selection.
%0 Journal Article
%1 citeulike:4544146
%A Antal, Tibor
%A Traulsen, Arne
%A Ohtsuki, Hisashi
%A Tarnita, Corina E.
%A Nowak, Martin A.
%D 2009
%J Journal of Theoretical Biology
%K game
%N 4
%P 614--622
%R 10.1016/j.jtbi.2009.02.010
%T Mutation-selection equilibrium in games with multiple strategies
%U http://dx.doi.org/10.1016/j.jtbi.2009.02.010
%V 258
%X In evolutionary games the fitness of individuals is not constant but depends on the relative abundance of the various strategies in the population. Here we study general games among n strategies in populations of large but finite size. We explore stochastic evolutionary dynamics under weak selection, but for any mutation rate. We analyze the frequency dependent Moran process in well-mixed populations, but almost identical results are found for the Wright–Fisher and Pairwise Comparison processes. Surprisingly simple conditions specify whether a strategy is more abundant on average than 1/ n , or than another strategy, in the mutation-selection equilibrium. We find one condition that holds for low mutation rate and another condition that holds for high mutation rate. A linear combination of these two conditions holds for any mutation rate. Our results allow a complete characterization of n × n games in the limit of weak selection.
@article{citeulike:4544146,
abstract = {In evolutionary games the fitness of individuals is not constant but depends on the relative abundance of the various strategies in the population. Here we study general games among n strategies in populations of large but finite size. We explore stochastic evolutionary dynamics under weak selection, but for any mutation rate. We analyze the frequency dependent Moran process in well-mixed populations, but almost identical results are found for the Wright–Fisher and Pairwise Comparison processes. Surprisingly simple conditions specify whether a strategy is more abundant on average than 1/ n , or than another strategy, in the mutation-selection equilibrium. We find one condition that holds for low mutation rate and another condition that holds for high mutation rate. A linear combination of these two conditions holds for any mutation rate. Our results allow a complete characterization of n × n games in the limit of weak selection.},
added-at = {2009-05-19T18:00:18.000+0200},
author = {Antal, Tibor and Traulsen, Arne and Ohtsuki, Hisashi and Tarnita, Corina E. and Nowak, Martin A.},
biburl = {https://www.bibsonomy.org/bibtex/2f6a1c14cbf443fe49ad61d38ce5992ff/earthfare},
citeulike-article-id = {4544146},
description = {CiteULike: Everyone's library},
doi = {10.1016/j.jtbi.2009.02.010},
interhash = {2da8d2a3248ad4335108ca6586e60d04},
intrahash = {f6a1c14cbf443fe49ad61d38ce5992ff},
issn = {00225193},
journal = {Journal of Theoretical Biology},
keywords = {game},
month = {June},
number = 4,
pages = {614--622},
posted-at = {2009-05-19 03:00:38},
priority = {2},
timestamp = {2009-05-19T18:03:27.000+0200},
title = {Mutation-selection equilibrium in games with multiple strategies},
url = {http://dx.doi.org/10.1016/j.jtbi.2009.02.010},
volume = 258,
year = 2009
}