The trade effects of the U. S. generalized system of preferences

Conclusion Subsequent rounds of multilateral tariff reductions and changes in the GSP and other trade arrangements supersede the analysis presented here, but this study still provides some guidance to future analysis of tariff concessions. The review of the literature suggests a need for greater precision in methods and data. The new technique employed here would appear to be appropriate for future analyses of multilateral trade liberalization and of proliferating free trade areas. Our results indicate that extremely optimistic and pessimistic estimates of GSP trade effects should be regarded with skepticism. The GSP has probably had a modest positive impact on LDC exports to the United States.