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

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    S19ArtMandaAdoptionInthomDev.pdf (227.4Kb)
    Date
    2019-05-02
    Author
    Manda, J.
    Alene, A.
    Hirpa Tufa, A.
    Abdoulaye, Tahirou
    Kamara, A.
    Olufajo, O.
    Boukar, O.
    Manyong, Victor M.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Cowpea 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.
    https://dx.doi.org/10.1111/1477-9552.12331
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5806
    Non-IITA Authors ORCID
    Julius Mandahttps://orcid.org/0000-0002-9599-5906
    Arega Alenehttps://orcid.org/0000-0002-2491-4603
    Adane Tufahttps://orcid.org/0000-0001-9801-6526
    Tahirou Abdoulayehttps://orcid.org/0000-0002-8072-1363
    Alpha Kamarahttps://orcid.org/0000-0002-1844-2574
    Ousmanehttps://orcid.org/0000-0003-0234-4264
    Victor Manyonghttps://orcid.org/0000-0003-2477-7132
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1111/1477-9552.12331
    Research Themes
    BIOTECH & PLANT BREEDING; PLANT PRODUCTION & HEALTH; SOCIAL SCIENCE & AGRICUSINESS
    IITA Subjects
    Agribusiness; Plant Breeding; Plant Health; Plant Production; Policies And Institutions
    Agrovoc Terms
    Varieties; Control Systems; Nigeria; Cowpeas
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Journal of Agricultural Economics
    Collections
    • Journal and Journal Articles4842
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