Preference Erosion and Multilateral Trade Liberalization

Because of concern that tariff reductions in Organisation forEconomic Co-operation and Development (OECD) countries willtranslate into worsening export performance for the least developedcountries, the erosion of trade preferences may become a stumblingblock for multilateral trade liberalization. An econometricanalysis of actual preference use shows that preferences areunderused because of administrative burdens—estimatedto be equivalent to an average of 4 percent of the value ofgoods traded. To quantify the maximum scope for preference erosion,the compliance cost estimates are used in a model-based assessmentof the impact of full elimination of OECD tariffs. Taking intoaccount administrative costs eliminates erosion costs in theaggregate and greatly reduces the losses for countries mostaffected by preference erosion.