Research on the impact of payoff reflection mechanism on cooperation evolution

Abstract

Taking into account the results of historical behavior in real life on the choice of strategy, we proposes a payoff reflection mechanism. In the process of cooperation evolution, the game individuals will judge whether to learn each other's strategies based on the historical payoff of himself and his neighbors, that is, the strategy learning is affected by the historical payoff. If the current strategy can bring greater payoff in historical behavior, the game players will change the current strategy with less possibility. For this reason, the historical payoff reference coefficients w and u of the game individuals and their neighbors are proposed to measure the degree of reference of game individuals to their own and neighbors' historical payoff. The memory interval length is expressed by M. The experimental results show that the payoff reflection mechanism can greatly improve the cooperation level of the group. However, the reference rate of historical payoff is not the bigger the better. The strength of memory ability and the level of betrayal temptation will affect the optimal value of w and u.