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

作　　者：王锡朋 姜罗罗 汪秉宏 

机构地区：[1]Department of Modern Physics,University of Science and Technology of China [2]College of Physics and Electronic Information Engineering,Wenzhou University

出　　处：《Chinese Physics B》2012年第7期74-79,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 11047012, 91024026, and 10975126);the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20093402110032)

摘　　要：Effects of inforination 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 Aopt 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 Aopt. 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.Effects of inforination 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 Aopt 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 Aopt. 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.

关 键 词：information asymmetry COOPERATION STRATEGY 

分 类 号：O225[理学—运筹学与控制论] TP18[理学—数学]