What is the optimal number of currencies in the world? Common currencies affect trading costs and, thereby, the amounts of trade, output, and consumption. From the perspective of monetary policy, the adoption of another country's currency trades off the benefits of commitment to price stability...

This paper studies how the creation of a European Central Bank (ECB) will change the political economy of monetary policy in Europe. The twelve governors of the national Central Banks of the EEC have recently proposed a statute for the ECB which delineates its institutional structure. In this...