Evolution of reciprocity in asymmetric international environmental negotiations

We study the success of generalised trigger strategies in the evolution of cooperation in international environmental negotiations where the performance of these strategies is derived from asymmetric n-player prisoners’ dilemmas. Our results suggest that there exist regions in the relevant parameter space—i.e. costs and benefits, low and high tit-for-tat thresholds, probability of continued interaction—such that (partial) cooperation may emerge as long-run attractor of the evolutionary dynamics in these asymmetric social dilemmas.