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 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 firms within sectors. Why have .productivity enclaves., islands of high productivity in a sea of smaller low-productiv