00538pamaa2200181 4500 0000012322 20070727090000.0 032131154x 337 KRU HF1359 KRU 1997 Krugman International economics : theory and policy Paul R. Krugman and Maurice Obstfeld. 4th ed. Massachusetts: Addison Wesley, 1997. xxviii, 788p.: 24cm. International finance International economic relations Obstfeld, Maurice