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arXiv 2104.11270physics.soc-phcs.SIq-bio.PE
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超图上群体选择困境的进化博弈模型

Evolutionary game model of group choice dilemmas on hypergraphs

Andrea Civilini, Nejat Anbarci, Vito Latora

摘要:

我们介绍了一个进化游戏的超图中,一个有风险的替代品和一个安全的社会群体中采取的不同大小的决定。该模型自然地再现了选择的变化,即个人决策者的偏好和群体的一致选择之间的差异,这在选择困境中已经被经验观察到。特别是,偏离纳什均衡的风险策略时,发生的动态发生在异构超图。这些结果可以解释社会群体中出现的非理性羊群行为和激进行为。

英文摘要:

We introduce an evolutionary game on hypergraphs in which decisions between a risky alternative and a safe one are taken in social groups of different sizes. The model naturally reproduces choice shifts, namely the differences between the preference of individual decision makers and the consensual choice of a group, that have been empirically observed in choice dilemmas. In particular, a deviation from the Nash equilibrium towards the risky strategy occurs when the dynamics takes place on heterogeneous hypergraphs. These results can explain the emergence of irrational herding and radical behaviours in social groups.

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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