15 Solutions to Collective Action: Repeated Bilateral Interaction Less forgiving strategies do not pay as much as tit-for-tat Grim trigger , for example, is a strategy in which one will never cooperate again if the opponent cheats –Under grim trigger, total payoff will be T + P[δ/(1 – δ)] Imagine T = $150, and P=$50 Then $150 + 50∙0.96(1 - 0.96) = $1,350 –Not as good as tit-for-tat
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