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Published on: April 18, 2025
Role of aspiration-induced migration in cooperation
Han-Xin Yang1, Zhi-Xi Wu, Bing-Hong Wang
1Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China. hxyang@mail.ustc.edu.cn
Abstract:
Both cooperation and migration are ubiquitous in human society and animal world. In this Rapid Communication, we propose an aspiration-induced migration in which individuals will migrate to new sites provided that their payoffs are below some aspiration level. It is found that moderate aspiration level can best favor cooperative behavior. In particular, moderate aspiration level enables cooperator clusters to maintain and expand whereas induces defector clusters to disintegrate, thus promoting the diffusion of cooperation among population. Our results provide insights into understanding the role played by migration in the emergence of cooperative behavior.
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