This paper is concerned with the effects of exports and export diversification on growth and the policy implications for post-crisis export strategies. Using a panel of 30 selected sub-Saharan African countries over the period 1995-2008, it estimates the impact of exports and export diversification on value added, labor productivity, and conditional and unconditional labor demand.
https://www.brookings.edu/wp-content/uploads/2016/06/12-exports-africa-songwe.pdf