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

被引：7
|
作者：
Wang, Xi-Peng [2 ]
Jiang, Luo-Luo [1 ]
Wang, Bing-Hong [2 ]
机构：
[1] Wenzhou Univ, Coll Phys & Elect Informat Engn, Wenzhou 325035, Peoples R China
[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
来源：
CHINESE PHYSICS B | 2012年 / 21卷 / 07期
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
information asymmetry; cooperation; strategy; DIVERSITY PROMOTES; MECHANISM;
D O I：
10.1088/1674-1056/21/7/070210
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Effects of information asymmetry on cooperation in the prisoners' dilemma game 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 the dilemma games of spatial prisoners.
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页数：6
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