00386    a2200109   4500001001000000005001700010008004100027245009300068100002300161700002500184773006700209ART_1259820260410161907.0260409a                                 10aA synthesis of Keynesian, monetary, and portfolio approaches to flexible exchanges rates1 aHelliwell, John F.1 aGylfason, Thorvaldur0 tThe Economic Journalg- Vol. 93, Nº 372 (dic. 1983)wREV12512