It is well known from the analysis of monetary policy coordination of two countries that coordination often Pareto-dominates the outcome of the non-cooperative game. Hence both countries will have an incentive to form a union when it is certain that the other country will also join. However, in...

In Kohler (2002) we analyse coalition formation in monetary policy coordination games between n countries. We find that positive spillovers of the coalition formation process and the resulting free-rider problem limit the stable coalition size: since the coalition members are bound by the...