Influence of the variance of degree distributions on the evolution of cooperation in complex networks

Ei Tsukamoto and Susumu Shirayama

Physica A: Statistical Mechanics and its Applications, 2010, vol. 389, issue 3, 577-586

Abstract: We study how initial network structure affects the evolution of cooperation in a spatial prisoner’s dilemma game. The network structure is characterized by various statistical properties. Among those properties, we focus on the variance of the degree distribution, and inquire how it affects the evolution of cooperation by three methods of imitation. For every method, it was found that a scale-free network does not always promote the evolution of cooperation, and that there exists an appropriate value of the variance, at which cooperation is optimal.

Keywords: Evolution of cooperation; Spatial prisoner’s dilemma; Complex networks; Scale-free network; Game theory (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:389:y:2010:i:3:p:577-586

DOI: 10.1016/j.physa.2009.10.002

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