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arXiv · 2401.07873

Inequality leads to the evolution of intolerance in reputation-based populations

Luis A. Martinez-Vaquero
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Abstract

This work studies the impact of economic inequality on the evolution of intolerance through a reputation-based model of indirect reciprocity. Results show that economic inequality is a powerful enhancer of intolerance, inducing the escalation of out-group discrimination even without the presence of new intolerant mutants. It also generates behavior modifications within tolerant disfavored minorities: their members either relax punishments against the uncooperative or prioritize helping the wealthy, even suffering discrimination in return. On the other hand, the redistribution of wealth is proved as a viable solution to avoid the spread of intolerance as long as it increases equality and is implemented before intolerance permeates part of the population.

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Luis A. Martinez-Vaquero. 2024-01-15. Inequality leads to the evolution of intolerance in reputation-based populations. https://doi.org/10.1063/5.0135376

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