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...

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...