Effects of information asymmetry on cooperation in the prisoners’ dilemma game

doi:10.1088/1674-1056/21/7/070210

中国物理B ›› 2012, Vol. 21 ›› Issue (7): 70210-070210.doi: 10.1088/1674-1056/21/7/070210

Effects of information asymmetry on cooperation in the prisoners’ dilemma game

王锡朋^a, 姜罗罗^b, 汪秉宏^a

a Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;
b College of Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China

收稿日期:2011-12-08 修回日期:2012-02-06 出版日期:2012-06-01 发布日期:2012-06-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11047012, 91024026, and 10975126) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20093402110032).

Effects of information asymmetry on cooperation in the prisoners’ dilemma game

Wang Xi-Peng(王锡朋)^a), Jiang Luo-Luo(姜罗罗)^b)†, and Wang Bing-Hong(汪秉宏)^a)‡

a Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;
b College of Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China

Received:2011-12-08 Revised:2012-02-06 Online:2012-06-01 Published:2012-06-01
Contact: Jiang Luo-Luo, Wang Bing-Hong E-mail:jiangluoluo@gmail.com;bhwang@ustc.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11047012, 91024026, and 10975126) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20093402110032).

摘要/Abstract

摘要： Effects of information asymmetry on cooperation in the dilemma game of prisoners are investigated. The amplitude A is introduced to describe the degree of information asymmetry. It is found that there exists an optimal value of amplitude A_opt at which the fraction of cooperation reaches its maximal value. The reason lies in that cooperators on the two-dimensional grid form large clusters at A_opt. In addition, the theoretical analysis in terms of the mean-field theory is used to understand this kind of phenomenon. It is confirmed that the information asymmetry plays an important role in the dynamics of dilemma games of spatial prisoners.

关键词: information asymmetry, cooperation, strategy

Abstract: Effects of information asymmetry on cooperation in the dilemma game of prisoners are investigated. The amplitude A is introduced to describe the degree of information asymmetry. It is found that there exists an optimal value of amplitude A_opt at which the fraction of cooperation reaches its maximal value. The reason lies in that cooperators on the two-dimensional grid form large clusters at A_opt. In addition, the theoretical analysis in terms of the mean-field theory is used to understand this kind of phenomenon. It is confirmed that the information asymmetry plays an important role in the dynamics of dilemma games of spatial prisoners.

Key words: information asymmetry, cooperation, strategy

中图分类号: (Decision theory and game theory)

02.50.Le

07.05.Tp (Computer modeling and simulation) 87.23.Ge (Dynamics of social systems)

王锡朋, 姜罗罗, 汪秉宏 . Effects of information asymmetry on cooperation in the prisoners’ dilemma game[J]. 中国物理B, 2012, 21(7): 70210-070210.

Wang Xi-Peng(王锡朋), Jiang Luo-Luo(姜罗罗), and Wang Bing-Hong(汪秉宏) . Effects of information asymmetry on cooperation in the prisoners’ dilemma game[J]. Chin. Phys. B, 2012, 21(7): 70210-070210.

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Effects of information asymmetry on cooperation in the prisoners’ dilemma game

Effects of information asymmetry on cooperation in the prisoners’ dilemma game

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