In contrast to Robert Mundell‘s Optimum Currency Area theory and his recommendation of forming monetary union, the economic fundamentals of Euro area member countries have not harmonized. The opposite holds: the Euro core countries – most of all Germany, but also the Netherlands and Finland...

Societies provide institutions that are costly to use, but able to enforce long-run relationships. We study the optimal decision problem of using self-governance for risk sharing or governance through enforcement provided by these institutions. Third-party enforcement is modelled as a costly...