2 papers
q-bio.PE2025
Integrating upstream and downstream reciprocity stabilizes cooperator-defector coexistence in others-only public goods games
Tatsuya Sasaki, Satoshi Uchida, Isamu Okada +2
Human cooperation persists among strangers in large, well-mixed populations despite theoretical predictions of difficulties, leaving a fundamental evolutionary puzzle. While upstre…
q-bio.PE2016
Indirect reciprocity can overcome free-rider problems on costly moral assessment
Tatsuya Sasaki, Isamu Okada, Yutaka Nakai
Indirect reciprocity is one of the major mechanisms of the evolution of cooperation. Because constant monitoring and accurate evaluation in moral assessments tend to be costly, ind…