Did external barriers cause the marginalization of Sub-Saharan Africa in world trade?

Bibliographic Details
Main Author:	Amjadi, Azita
Other Authors:	Reincke, Ulrich 1962-, Yeats, Alexander J.
Format:	Book
Language:	English
Published:	Washington, D.C. World Bank c1996.
Series:	World Bank discussion papers 348.
Subjects:	Exports > Africa, Sub-Saharan. Tariff > Africa, Sub-Saharan. Tariff > OECD countries. Nontariff trade barriers > Africa, Sub-Saharan. Nontariff trade barriers > OECD countries. Transportation > Africa, Sub-Saharan > Costs. Africa, Sub-Saharan > Commerce.