The ex-ante economic, nutritional, and environmental impacts of cowpea and soybean research and extension in sub-Saharan Africa

cg.contacta.alene@cgiar.orgen_US
cg.contributor.centerInternational Institute of Tropical Agriculture - IITAen_US
cg.contributor.crpCGIAR Research Program on Grain Legumes - GLen_US
cg.contributor.funderNot Applicableen_US
cg.coverage.countryNGen_US
cg.coverage.regionWestern Africaen_US
cg.creator.idAlene, Arega: 0000-0002-2491-4603en_US
cg.date.embargo-end-date2016-12-31en_US
cg.subject.agrovocenvironmenten_US
cg.subject.agrovocresearchen_US
dc.creatorAlene, Aregaen_US
dc.date.accessioned2017-04-06T10:43:36Z
dc.date.available2017-04-06T10:43:36Z
dc.description.abstractMaterials and Methods An economic surplus model for an open economy was used to derive summary measures of the potential impacts of cowpea and soybean improvement under certain reasonable assumptions for research starting in 2017 and benefits accruing from 2020 (beginning of adoption of improved technologies) to 2026. The benefits were measured based on a parallel downward shift in the (linear) supply curve following research. The annual flows of gross economic benefits from crop improvement were estimated for each of the countries and aggregated, with the aggregate benefits finally discounted to derive the present value (in 2017) of total net benefits from the intervention. The key parameters that determine the magnitude of the economic benefits are: (1) the expected technology adoption in terms of area under improved technologies; (2) expected yield gains (or avoided losses) following adoption; and (3) pre-research levels of production and prices. Results and interpretation The present value of gross benefits of cowpea research and extension is estimated at US$640 million and US$81 million for cowpea and soybean respectively (Table 1). Cowpea research is also projected to contribute to: (1) food security through increased availability of food (1,830,829 tons); (2) nutrition security through increased availability of protein (439,399 tons); and (3) environmental benefits through biological nitrogen fixation (91,541 tons) that also translates to a fertilizer cost saving of US$51 million. Cowpea research will have the greatest economic impacts in Nigeria, which accounts for over 80% of the projected economic benefits in Sub-Saharan Africa (SSA). Besides, soybean research is also estimated to contribute to: (1) food security through increased availability of food (309,798 tons); (2) nutrition security through increased availability of protein (123,919 tons); and (3) environmental benefits through biological nitrogen fixation (23,545 tons) that also translates to a fertilizer cost saving of US$13 million. Unlike cowpea research, soybean research will have the greatest economic impacts in South Africa, which accounts for over 28% of the projected economic benefits followed closely by Nigeria which also accounts for about 27% of the projected economic benefits in SSA.en_US
dc.formatDOCXen_US
dc.identifierhttps://mel.cgiar.org/reporting/downloadmelspace/hash/ZLkoaogJ/v/9aa75d21a5f61efb8c47459650bc3269en_US
dc.identifier.citationArega Alene. (1/1/2016). The ex-ante economic, nutritional, and environmental impacts of cowpea and soybean research and extension in sub-Saharan Africa.en_US
dc.identifier.statusLimited accessen_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/6615
dc.languageenen_US
dc.rightsCC-BY-NC-4.0en_US
dc.subjectSoya beanen_US
dc.subjectCowpeaen_US
dc.titleThe ex-ante economic, nutritional, and environmental impacts of cowpea and soybean research and extension in sub-Saharan Africaen_US
dc.typeReporten_US
dcterms.available2016-01-01en_US

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