中国物理B ›› 2012, Vol. 21 ›› Issue (10): 108702-108702.doi: 10.1088/1674-1056/21/10/108702

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

A 2-stage strategy updating rule promotes cooperation in the prisoner's dilemma game

方祥圣a, 朱平b, 刘润然c, 刘恩钰d, 魏贵义b   

  1. a Department of Information Science, Anhui Institute of Economic Management, Hefei 230059, China;
    b Networking and Distributed Computing Laboratory, Zhejiang Gongshang University, Hangzhou 310018, China;
    c Institute for Information Economy, Hangzhou Normal University, Hangzhou 310036, China;
    d South China University of Technology, Guangzhou 510641, China
  • 收稿日期:2011-12-02 修回日期:2012-06-11 出版日期:2012-09-01 发布日期:2012-09-01
  • 基金资助:
    Project supported by the Natural Science Foundation of Zhejiang Province of China (Grant Nos. Y1110766, Y1101316, Y6110317, and LY12A05003) and the Key Science and Technology Plan Program of Zhejiang Province, China (Grant No. 2010C13021).

A 2-stage strategy updating rule promotes cooperation in the prisoner's dilemma game

Fang Xiang-Sheng (方祥圣)a, Zhu Ping (朱平)b, Liu Run-Ran (刘润然)c, Liu En-Yu (刘恩钰)d, Wei Gui-Yi (魏贵义)b   

  1. a Department of Information Science, Anhui Institute of Economic Management, Hefei 230059, China;
    b Networking and Distributed Computing Laboratory, Zhejiang Gongshang University, Hangzhou 310018, China;
    c Institute for Information Economy, Hangzhou Normal University, Hangzhou 310036, China;
    d South China University of Technology, Guangzhou 510641, China
  • Received:2011-12-02 Revised:2012-06-11 Online:2012-09-01 Published:2012-09-01
  • Contact: Zhu Ping E-mail:jackyzhu@mail.zjgsu.edu.cn
  • Supported by:
    Project supported by the Natural Science Foundation of Zhejiang Province of China (Grant Nos. Y1110766, Y1101316, Y6110317, and LY12A05003) and the Key Science and Technology Plan Program of Zhejiang Province, China (Grant No. 2010C13021).

摘要: In this study, we propose a spatial prisoner's dilemma game model with a 2-stage strategy updating rule, and focus on the cooperation behavior of the system. In the first stage, i.e., the pre-learning stage, a focal player decides whether to update his strategy according to the pre-learning factor β and the payoff difference between himself and the average of his neighbors. If the player makes up his mind to update, he enters into the second stage, i.e., the learning stage, and adopts a strategy of a randomly selected neighbor according to the standard Fermi updating rule. The simulation results show that the cooperation level has a non-trivial dependence on the pre-learning factor. Generally, the cooperation frequency decreases as the pre-learning factor increases; but a high cooperation level can be obtained in the intermediate region of -3<β<-1. We then give some explanations via studying the co-action of pre-learning and learning. Our results may sharpen the understanding of the influence of the strategy updating rule on evolutionary games.

关键词: evolutionary game theory, strategy updating, social cooperation, prisoner's dilemma game

Abstract: In this study, we propose a spatial prisoner's dilemma game model with a 2-stage strategy updating rule, and focus on the cooperation behavior of the system. In the first stage, i.e., the pre-learning stage, a focal player decides whether to update his strategy according to the pre-learning factor β and the payoff difference between himself and the average of his neighbors. If the player makes up his mind to update, he enters into the second stage, i.e., the learning stage, and adopts a strategy of a randomly selected neighbor according to the standard Fermi updating rule. The simulation results show that the cooperation level has a non-trivial dependence on the pre-learning factor. Generally, the cooperation frequency decreases as the pre-learning factor increases; but a high cooperation level can be obtained in the intermediate region of -3<β<-1. We then give some explanations via studying the co-action of pre-learning and learning. Our results may sharpen the understanding of the influence of the strategy updating rule on evolutionary games.

Key words: evolutionary game theory, strategy updating, social cooperation, prisoner's dilemma game

中图分类号:  (Dynamics of social systems)

  • 87.23.Ge
89.75.Hc (Networks and genealogical trees) 05.10.-a (Computational methods in statistical physics and nonlinear dynamics)