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Environment-based preference selection promotes cooperation in spatial prisoner’s dilemma game

机译:基于环境的偏好选择促进空间囚徒困境游戏中的合作

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摘要

The impact of environment on individuals is particularly critical. In evolutionary games, adopting the strategy of the neighbor who performs better is nontrivial for the survival and maintenance of cooperation, in that such an action may help the agents to obtain higher benefit and more obvious evolutionary advantages. Inspired by this idea, we investigate the effect of the environment-based preference selection on the evolution of cooperation in spatial prisoner’s dilemma. A simple rule, incorporating individual preference selection via an adjustable parameter α to explore how the selection of the potential strategy sources influences individual behavior traits, is considered. Because social interaction may not be the only way of generating payoffs, we assume that the individual’s income is also affected by the environment. Besides, taking into account individual differences, we introduce the heterogeneity of the environment. Through numerous computing simulations, we find that environment-based preference selection, which accelerates the microscopic organization of cooperator clusters to resist the aggression of defectors, can truly promote cooperation within a large range of parameters. Our study indicates that the combination of heterogeneity and preference selection may be key for the sustainability of cooperation in structured populations.
机译:环境对个人的影响尤为关键。在进化博弈中,采取表现更好的邻居的策略对于合作的生存和维持至关重要,因为这种行为可以帮助行动者获得更高的利益和更明显的进化优势。受到这一想法的启发,我们研究了基于环境的偏好选择对空间囚徒困境合作演变的影响。考虑了一个简单的规则,该规则通过可调整的参数α合并个人偏好选择,以探索潜在策略源的选择如何影响个人行为特征。由于社交互动可能不是产生收益的唯一方法,因此我们假设个人的收入也受到环境的影响。此外,考虑到个体差异,我们介绍了环境的异质性。通过大量的计算模拟,我们发现基于环境的偏好选择可以加速合作伙伴集群的微观组织以抵抗叛逃者的侵略,从而真正促进大范围参数内的合作。我们的研究表明,异质性和偏好选择的结合可能是结构化人群合作可持续性的关键。

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