Imitation of success leads to cost of living mediated fairness in the Ultimatum Game

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Abstract

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.

Original languageEnglish (US)
Article number126328
JournalPhysica A: Statistical Mechanics and its Applications
Volume583
DOIs
StatePublished - Dec 2021

All Science Journal Classification (ASJC) codes

  • Statistics and Probability
  • Condensed Matter Physics

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