00547nam a2200097Ia 450000500170000010000240001724500590004126000090010052003210010958300190043020260716043336.0  aFRANKEL, Jeffrey A.  aRegional trading agreements : natural or supernatural?  c1996  aSummarizes recent research which evaluated the trade-off between trade creation and trade diversion.  Concludes that the desirability of regional trading agreements depends on whether the extent of regionalisation exceeds an optional level that is determined by the magnitude of transportation costs between regions.  c3/7/00kM2LMGR