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Nonequivalence of updating rules in evolutionary games under high mutation rates.

Published version
Peer-reviewed

Type

Article

Change log

Authors

Kaiping, GA 
Jacobs, GS 
Cox, SJ 
Sluckin, TJ 

Abstract

Moran processes are often used to model selection in evolutionary simulations. The updating rule in Moran processes is a birth-death process, i. e., selection according to fitness of an individual to give birth, followed by the death of a random individual. For well-mixed populations with only two strategies this updating rule is known to be equivalent to selecting unfit individuals for death and then selecting randomly for procreation (biased death-birth process). It is, however, known that this equivalence does not hold when considering structured populations. Here we study whether changing the updating rule can also have an effect in well-mixed populations in the presence of more than two strategies and high mutation rates. We find, using three models from different areas of evolutionary simulation, that the choice of updating rule can change model results. We show, e. g., that going from the birth-death process to the death-birth process can change a public goods game with punishment from containing mostly defectors to having a majority of cooperative strategies. From the examples given we derive guidelines indicating when the choice of the updating rule can be expected to have an impact on the results of the model.

Description

Keywords

Birth Rate, Computer Simulation, Cooperative Behavior, Game Theory, Markov Chains, Models, Biological, Mortality, Mutation Rate

Journal Title

Phys Rev E Stat Nonlin Soft Matter Phys

Conference Name

Journal ISSN

1539-3755
1550-2376

Volume Title

90

Publisher

American Physical Society (APS)

Rights

All rights reserved