Memory and target payoff enhance cooperation in evolutionary social dilemmas

Author:

Lin Xinle1ORCID,Li Jianhe2,Fan Suohai3ORCID

Affiliation:

1. Jinan University–University of Birmingham Joint Institute, Jinan University 1 , Guangzhou 511443, China

2. PSBC Consumer Finance 2 , Guangzhou 511458, China

3. School of Information Science and Technology, Jinan University 3 , Guangzhou 510632, China

Abstract

We proposed a neighbor selection mechanism based on memory and target payoff, where the target payoff is the maximum value of the group’s average expected payoff. According to this mechanism, individuals prioritize selecting neighbors whose average payoffs in the last M rounds are close to the target payoff for strategy learning, aiming to maximize the group’s expected payoff. Simulation results on the grid-based Prisoner’s Dilemma and Snowdrift games demonstrate that this mechanism can significantly improve the group’s payoff and cooperation level. Furthermore, the longer the memory length, the higher the group’s payoff and cooperation level. Overall, the combination of memory and target payoff can lead to the emergence and persistence of cooperation in social dilemmas as individuals are motivated to cooperate based on both their past experiences and future goals. This interplay highlights the significance of taking into account numerous variables in comprehending and promoting cooperation within evolutionary frameworks.

Funder

National Key Research and Development Program of China

Basic and Applied Basic Research Foundation of Guangdong Province

Publisher

AIP Publishing

Reference57 articles.

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