Senegal is a typical sub-Saharan economy, which conducted an import substitution policy over 1960-86, followed by a policy of support for the private sector and liberalization of the economy. It suffers from a low level of economic development, hindering the process of economic diversification,...

Firms tend to cluster in close geographic proximity to each other to benefit from reduced transport costs, shared inputs, and productivity spillovers due to learning and technology transfers. Evidence from low-income countries suggests that such agglomeration economies may be substantial in...