We consider economic development of Sub-Saharan Africa from the perspective of slow convergence of productivity, both across sectors and across firms within sectors. Why have “productivity enclaves”, islands of high productivity in a sea of smaller low-productivity firms, not diffused more...

This paper ties together the macroeconomic and microeconomic evidence on the competitiveness of African manufacturing sectors. The conceptual framework is based on the newer theories that see the evolution of comparative advantage as influenced by the business climate -- a key public good -- and...