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Social norms and group-bounded indirect reciprocity.

Wakaba Tateishi1, Hirotaka Imada2,3

  • 1Department of Business Administration, Hokkaido Musashi Women's University, Sapporo, Japan.

Evolutionary Human Sciences
|April 30, 2026
PubMed
Summary

Humans use reputation to cooperate, but sensitivity to second-order information varies. This study found people use second-order information more for in-group interactions, though it

Keywords:
cooperationin-group favouritismindirect reciprocityintergroup cooperationreputation

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