The effect of asymmetric payoff mechanism on evolutionary networked prisoner’s dilemma game

Wen-Bo Du, Xian-Bin Cao and Mao-Bin Hu

Physica A: Statistical Mechanics and its Applications, 2009, vol. 388, issue 24, 5005-5012

Abstract: In social and biological systems, there are obvious individual divergence and asymmetric payoff phenomenon due to the strength, power and influence differences. In this paper, we introduce an asymmetric payoff mechanism to evolutionary Prisoner’s Dilemma Game (PDG) on scale-free networks. The co-effects of individual diversity and asymmetric payoff mechanism on the evolution of cooperation and the wealth distribution under different updating rules are investigated. Numerical results show that the cooperation is highly promoted when the hub nodes are favored in the payoff matrix, which seems to harm the interest of the majority. But the inequality of social wealth distribution grows with the unbalanced payoff rule. However, when the node difference is eliminated in the learning strategy, the asymmetric payoff rule will not affect the cooperation level. Our work may sharpen the understanding of the cooperative behavior and wealth inequality in the society.

Keywords: Evolutionary games; Cooperation; Scale-free networks; Prisoner’s dilemma game (search for similar items in EconPapers)
Date: 2009
References: View complete reference list from CitEc
Citations: View citations in EconPapers (11)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:388:y:2009:i:24:p:5005-5012

DOI: 10.1016/j.physa.2009.08.026

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