Because of concern that OECD tariff reductions will translate into worsening export performance for the least developed countries, trade preferences have proven a stumbling block to developing country support for multilateral liberalization. We examine the actual scope for preference erosion,...

This paper is concerned with rules of origin when intermediate goods are differentiated. An analytical model emphasizes trade patterns and the relative importance of trade in intermediates given trade preferences. Econometric evidence based on intra-OECD trade in motor vehicles and motor vehicle...