This paper examines the extent and structure of nominal protection in a large sample of Sub-Saharan countries, and provides estimates of the effects of this protection on the exports of these countries. Both tariff rates and the frequency of nontariff barriers are found to be appreciably higher...

This paper draws on the neoclassical theory of international trade to examine the limits of efficient export diversification in low-income, commodity-exporting countries. It demonstrates the fundamental importance of relative factor endowments among countries for determining the commodity...