Evolutionary prisoner’s dilemma game on weighted scale-free networks

Wen-Bo Du, Hao-Ran Zheng and Mao-Bin Hu

Physica A: Statistical Mechanics and its Applications, 2008, vol. 387, issue 14, 3796-3800

Abstract: This paper investigates the evolutionary prisoner’s dilemma on weighted scale-free networks. The weighted networks are generated by adopting Barabási–Albert scale-free network and assigning link weight with wij=(ki×kj)β. Simulation results show that the cooperation frequency has a strong dependence on β. The value of β which is associated with the maximal cooperation frequency has been sought out. Moreover, Gini coefficient and Pareto exponent of the system’s wealth distribution are investigated. The inequality of wealth distribution is minimized at β≈−1.

Keywords: Evolutionary game; Prisoner’s dilemma; Complex networks; Weighted scale-free networks (search for similar items in EconPapers)
Date: 2008
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Citations: View citations in EconPapers (11)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:387:y:2008:i:14:p:3796-3800

DOI: 10.1016/j.physa.2008.02.036

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