Hatton, Timothy J. What fundamentals drive world migration? / Timothy J. Hatton & Jeffrey G. Williamson - Helsinki : World Institute for Development Economic Research (WIDER) , 2003 - 23p. : ill. ; 30 cm. - WIDER Discussion paper No. 2003/23 . Includes bibliographical references. ISBN: 9291904287 Subjects--Topical Terms: International migrationEconomic models Gov. Doc. Class. No.: UN U WIDER WDP-2003/23