Omitted from traditional OCA criteria, price effects are important because regional monetary union protects from pricing risks and contributes to greater uniformity and efficiency in price setting. Among member countries it reduces price dispersion in tradables in part by irrevocably fixing the...

When countries, and macroeconomic models, open up to international capital markets, the welfare gains available through completion of financial markets for contingencies potentially are much greater than those available from access to noncontingent international borrowing. Intercasual insurance,...