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Adoption and ex-post impacts of improved cowpea varieties on productivity and net returns in Nigeria

dc.contributor.authorManda, J.
dc.contributor.authorAlene, A.
dc.contributor.authorHirpa Tufa, A.
dc.contributor.authorAbdoulaye, Tahirou
dc.contributor.authorKamara, A.
dc.contributor.authorOlufajo, O.
dc.contributor.authorBoukar, O.
dc.contributor.authorManyong, Victor M.
dc.date.accessioned2019-12-04T11:33:46Z
dc.date.available2019-12-04T11:33:46Z
dc.date.issued2019-05-02
dc.identifier.citationManda, J., Alene, A., Hirpa Tufa, A., Abdoulaye, T., Kamara, A., Olufajo, O., ... & Manyong, V.(2019). Adoption and ex-post impacts of improved cowpea varieties on productivity and net returns in Nigeria. Journal of Agricultural Economics, 1-19.
dc.identifier.issn0021-857X
dc.identifier.urihttps://hdl.handle.net/20.500.12478/5806
dc.description.abstractCowpea covers the largest area of any grain legume in Africa and is especially important in West Africa where Nigeria and Niger alone account for over 75% of the total cowpea production in the world. Despite successes of international and national cowpea improvement research in the development and release of several improved varieties, there is limited empirical evidence of adoption and ex‐post impacts of improved cowpea. Using a nationally representative survey data from a sample of 1,525 cowpea‐growing households in northern Nigeria cultivating over 2,500 cowpea plots, we assess the adoption and impacts of improved cowpea varieties on cowpea yields, net returns and production costs. We apply a control function approach and propensity score matching models to estimate the causal effects of adoption of improved cowpea varieties. Our results show that 38% of the cowpea plots were planted with improved varieties, and cowpea yields, net returns and production costs increase significantly with the adoption of improved cowpea varieties. Adoption of improved cowpea varieties is associated on average with 26% yield gains, 61% increase in net returns and 14% increase in production costs. We also show that farmers who have a lower propensity to adopt improved cowpea varieties also face higher costs of production.
dc.format.extent1-19
dc.language.isoen
dc.rightsCopyrighted; all rights reserved
dc.subjectVarieties
dc.subjectControl Systems
dc.subjectNigeria
dc.subjectCowpeas
dc.titleAdoption and ex-post impacts of improved cowpea varieties on productivity and net returns in Nigeria
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpAgriculture for Nutrition and Health
cg.contributor.crpMaize
cg.contributor.crpPolicies, Institutions and Markets
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.crpGrain Legumes
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationInstitute of Agricultural Research
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.creator.identifierJulius Manda: 0000-0002-9599-5906
cg.creator.identifierArega Alene: 0000-0002-2491-4603
cg.creator.identifierAdane Tufa: 0000-0001-9801-6526
cg.creator.identifierTahirou Abdoulaye: 0000-0002-8072-1363
cg.creator.identifierAlpha Kamara: 0000-0002-1844-2574
cg.creator.identifierOusmane: 0000-0003-0234-4264
cg.creator.identifierVictor Manyong: 0000-0003-2477-7132
cg.researchthemeBIOTECH & PLANT BREEDING
cg.researchthemePLANT PRODUCTION & HEALTH
cg.researchthemeSOCIAL SCIENCE & AGRICUSINESS
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgribusiness
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.iitasubjectPolicies And Institutions
cg.journalJournal of Agricultural Economics
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid105202
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1111/1477-9552.12331


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