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q-bio.PE2025
When it pays to teach: a population threshold for dedicated teaching
Hirotaka Goto, Joshua B. Plotkin
Teachers hold a prominent place in modern societies, particularly where education is compulsory and widely institutionalized. This ubiquity obscures an underlying question: why do…
q-bio.PE2024
Convergence of reputations under indirect reciprocity
Bryce Morsky, Joshua B. Plotkin, Erol Akçay
Previous research has shown how indirect reciprocity can promote cooperation through evolutionary game theoretic models. Most work in this field assumes a separation of time-scales…