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

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 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 dilemma games of spatial prisoners.

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