Yield Gaps and Potential Agricultural Growth in West and Central Africa

Nin-Pratt, Alejandro · Johnson, Michael · Magalhaes, Eduardo · You, Liangzhi · Diao, Xinshen · Chamberlin, Jordan

Jan 2011 · IFPRI Research Monograph Book 170 · Intl Food Policy Res Inst

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West and Central African nations face major obstacles to achieving the Millennium Development Goal of cutting poverty and hunger in half by 2015, not least among them the fragile state of their agriculture. Although most regional economies depend on agriculture for employment, national income, and export revenues, farm productivity tends to be low, owing to relatively little use of chemical fertilizers, improved seeds, and other modern technologies. Yield Gaps and Potential Agricultural Growth in West and Central Africa responds to this problem by identifying potential areas of growth in the agricultural and livestock sectors. Using data on the soil, water availability, and weather in different parts of West and Central Africa, the authors find significant gaps in different locations between the potential and actual yield of various agricultural products. They then use an economywide multimarket model to simulate the future economic effects of closing these yield gaps. In coastal nations, crops such as cassava, cereals, and yams have the greatest yield gaps, whereas, in the Sahel, livestock, rice, coarse grains and oilseeds (groundnuts) have more room for growth. Although identifying these yield gaps does not guarantee that they can be closed, it does provide a focus for development efforts in the region. The authors conclude, moreover, that if such efforts involve transnational cooperation in agricultural research, marketing, and other areas, they could produce significant benefits across West and Central Africa. This study's findings will be of interest to policymakers, researchers, and others concerned with African development.

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