Imitation of Success Leads to Cost of Living Mediated Fairness in the Ultimatum Game
Imitation of Success Leads to Cost of Living Mediated Fairness in the Ultimatum Game
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DOI：
10.1016/j.physa.2021.126328
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发表时间：
2020-09
期刊：
影响因子：
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通讯作者：
Yunong Chen;A. Belmonte;C. Griffin
中科院分区：
文献类型：
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作者：
Yunong Chen;A. Belmonte;C. Griffin
在本文中，我们分析了一个社会模仿模型，该模型将内部能量储备（例如，食物/金钱储蓄）、生活成本、死亡和繁殖纳入最后通牒博弈中。我们表明，当模仿（和死亡）发生时，自私与生活成本之间就会出现自然的相关性。然而，在所有没有崩溃的社会中，非纳什共享策略的出现都是模仿的实际结果。我们通过从实验数据中提取的时变分布构建内部能量缓存的平均场近似来解释这些结果。
In this paper, we analyze a social imitation model that incorporates internal energy caches (e.g., food/money savings), cost of living, death, and reproduction into the Ultimatum Game. We show that when imitation (and death) occurs, a natural correlation between selfishness and cost of living emerges. However, in all societies that do not collapse, non-Nash sharing strategies emerge as the de facto result of imitation. We explain these results by constructing a mean-field approximation of the internal energy cache informed by time-varying distributions extracted from experimental data.