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

policy. To this end, we expand the modest coalition formation game, in which countries first decide on whether to join an … and emissions. We find that strategic delegation crowds out all efforts to increase coalition sizes by less ambitious …

coalition formation among three countries in order to examine the endogenous strategic considerations in the creation and … enlargement of international unions. Why would we observe a gradualist approach in the formation of the grand coalition even if …

coalition formation among three countries in order to examine the endogenous strategic considerations in the creation and … enlargement of international unions. Why would we observe a gradualist approach in the formation of the grand coalition even if …

We propose a semi-cooperative game theoretic approach to check whether a given coalition is stable in a Bayesian game …) coalitional equilibrium, describe a (cooperative) partition form game. A coalition is core-stable if the core of a suitable …

We show that essentially every communication equilibrium of any finite Bayesian game with two players can be …

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 …