TY - GEN AU - Tower,Edward AU - Willett,Thomas D. TI - The theory of optimum currency areas and exchange rate flexibility: a more general framework T2 - Special papers in international economics U1 - 332.4 5 PY - 1976/// CY - Princeton, N.J PB - International Finance Section, Dept. of Economics, Princeton University KW - Monetary unions KW - Foreign exchange problem ER -