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arXiv 2509.08006q-bio.PEcs.GT
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噪声条件下间接互惠进化稳定性的精确条件

Exact conditions for evolutionary stability in indirect reciprocity under noise

Nikoleta E. Glynatsi, Christian Hilbe, Yohsuke Murase

AI总结:

本研究在噪声条件下对公共评估机制中间接互惠的进化稳定规范进行了完整分析性刻画,重现并扩展了领先八规范,识别出类似零行列式策略的固定收益规范,为合作进化提供了理论基础。

摘要:

间接互惠是大规模合作的关键机制。该机制体现了这样一种洞见:人们帮助他人部分是为了建立和维持良好声誉。为了实现这种合作,适当的社会规范至关重要。这些规范规定了个体应如何根据他人的声誉采取行动,以及声誉如何根据个体行为进行更新。尽管先前的研究已识别出若干能够维持合作的规范,但对所有进化稳定规范的完整分析性刻画仍然缺乏,尤其是在评估或行为存在噪声的情况下。在本研究中,我们针对公共评估机制提供了这样的刻画。该刻画重现了已知结果,如领先八规范,但扩展到更一般的情形,允许各种类型的错误以及包括昂贵惩罚在内的额外行为。我们还识别出一些规范,它们对任何突变策略施加固定收益,类似于直接互惠中的零行列式策略。这些结果为理解通过间接互惠实现合作进化以及社会规范的关键作用提供了严谨的基础。

英文摘要:

Indirect reciprocity is a key mechanism for large-scale cooperation. This mechanism captures the insight that in part, people help others to build and maintain a good reputation. To enable such cooperation, appropriate social norms are essential. They specify how individuals should act based on each others' reputations, and how reputations are updated in response to individual actions. Although previous work has identified several norms that sustain cooperation, a complete analytical characterization of all evolutionarily stable norms remains lacking, especially when assessments or actions are noisy. In this study, we provide such a characterization for the public assessment regime. This characterization reproduces known results, such as the leading eight norms, but it extends to more general cases, allowing for various types of errors and additional actions including costly punishment. We also identify norms that impose a fixed payoff on any mutant strategy, analogous to the zero-determinant strategies in direct reciprocity. These results offer a rigorous foundation for understanding the evolution of cooperation through indirect reciprocity and the critical role of social norms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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