A research team led by Hitoshi Yamamoto (Rissho Univ. JAPAN) has unveiled new insights into how humans build and update reputations in cooperative social interactions. Human societies have achieved ...

x-axis represents the initial perfect defector ratio (η), and y-axis represents reputation cost (γ ). In accordance with the values of η and γ , there are two phases: one in which cooperation ...

Humans care about having a positive reputation, which may prompt them to help in scenarios where the return benefits are not obvious. Various game-theoretical models support the hypothesis that ...