Evolutionary public goods games on scale-free networks with unequal payoff allocation mechanism

Haifeng Zhang, Hanxin Yang, Wenbo Du, Binghong Wang and Xianbin Cao

Physica A: Statistical Mechanics and its Applications, 2010, vol. 389, issue 5, 1099-1104

Abstract: In this paper, we bring an unequal payoff allocation mechanism into evolutionary public goods game on scale-free networks and focus on the cooperative behavior of the system. The unequal mechanism can be tuned by one parameter α: if α>0, the hub nodes can use its degree advantage to collect more payoff; if α<0, numerous non-hub nodes will obtain more payoff in a single round game. Simulation results show that the cooperation level has a non-trivial dependence on α. For the small enhancement factor r, the cooperator frequency can be promoted by both negative and positive α. For large r, there exists an optimal α that can obtain the highest cooperation level. Our results may sharpen the understanding of the emergence of cooperation induced by the unequal payoff allocation mechanism.

Keywords: Complex networks; Public goods game; Cooperation; Unequal payoff allocation mechanism (search for similar items in EconPapers)
Date: 2010
References: View complete reference list from CitEc
Citations: View citations in EconPapers (36)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:389:y:2010:i:5:p:1099-1104

DOI: 10.1016/j.physa.2009.11.029

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