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

Our friend and colleague Rüdiger Dornbusch passed away before he was able tocomplete his book based on the Munich Lectures in Economics that he gave inNovember 17, 1998, at the Center for Economic Studies of Ludwig-Maximilians-Universität.The lectures contain a fascinating overview of the...