Thanks! They credit the initial discovery to D Hirshleifer, E Rasmusen: Cooperation in a repeated prisoners’ dilemma with ostracism, Journal of Economic Behavior and Organization, 1989 and happily the PDF is freely available
Thanks! They credit the initial discovery to D Hirshleifer, E Rasmusen: Cooperation in a repeated prisoners’ dilemma with ostracism, Journal of Economic Behavior and Organization, 1989 and happily the PDF is freely available