Cooperation is enhanced by inhomogeneous inertia in spatial prisoner’s dilemma game

Shuhua Chang, Zhipeng Zhang, Wu, Yu’e and Yunya Xie

Physica A: Statistical Mechanics and its Applications, 2018, vol. 490, issue C, 419-425

Abstract: Inertia is an important factor that cannot be ignored in the real world for some lazy individuals in the process of decision making. In this work, we introduce a simple classification mechanism of strategy changing in evolutionary prisoner’s dilemma games on different topologies. In this model, a part of players update their strategies according to not only the payoff difference, but also the inertia factor, which makes nodes heterogeneous and the system inhomogeneous. Moreover, we also study the impact of the number of neighbors on the evolution of cooperation. The results show that the evolution of cooperation will be promoted to a high level when the inertia factor and the inhomogeneous system are combined. In addition, we find that the more neighbors one player has, the higher density of cooperators is sustained in the optimal position. This work could be conducive to understanding the emergence and persistence of cooperative behavior caused by the inertia factor in reality.

Keywords: Evolutionary game; Cooperation; Inhomogeneous inertia; Prisoner’s dilemma game (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:490:y:2018:i:c:p:419-425

DOI: 10.1016/j.physa.2017.08.034

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