The large recent US current account deficits have been the subject of an enormous amount of study in academia, among government and central bank economists, in business economic reports, and in the press. Many different explanations of the cause of the deficit have been offered, and to varying...

This paper examines optimal monetary policy in an open-economy two-country model with sticky prices. Currency misalignments are shown to be inefficient and lower world welfare. Also, optimal policy must target not only inflation and the output gap, but also the currency misalignment. However,...