countries is self-enforcing. It is shown that there always exists a rather small stable tax coalition. For some subset of the … parameter space the grand coalition may be stable as well, even if the total number of countries is large. The small stable … coalition is not very effective in mitigating the inefficiency of the non-cooperative Nash equilibrium. The ineffectiveness is …

This paper characterizes geometrically the set of all Nash equilibrium payoffs achievable with unmediated communication …

individual. We find no correlation in subjects’ estimated levels of reasoning across two families of games. Furthermore …

coalition of countries regulates its own emissions and chooses whether or not to employ carbon tariffs against unregulated … use of carbon tariffs by coalition countries is credible. China and Russia respond by adopting binding abatement targets … global welfare cost of achieving a 10% reduction in global emissions by half relative to the case where coalition countries …

international agreement on emission reductions. We consider a situation where a coalition of countries does not cooperate on …. The equilibrium size of such a coalition, as well as equilibrium emissions, depends on the distribution across countries … of countries will reduce (or leave unchanged) the equilibrium coalition size. However, the effect of such an increase in …