This paper considers evolutionarily stable strategies (ESS) in a take-it-or-leave-it offer bargaining game with incomplete information. We find responders reject offers which yield a higher positive material payoff than their outside option. Proposers, in turn, make more attractive offers than...

We analyze bargaining over international climate agreements in a setting with incomplete information about abatement costs. Unilateral commitment to high abatement reduces the gains from global cooperation. This reduces the probability of reaching efficient international environmental agreements