Biofortification, crop adoption and health information: Impact pathways in Mozambique and Uganda
Biofortification is a promising strategy to combat micronutrient malnutrition by promoting the adoption of staple food crops bred to be dense sources of specific micronutrients. Research on biofortified orange-fleshed sweet potato (OFSP) has shown that the crop improves the vitamin A status of child...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Agricultural and Applied Economics Association
2018
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/146387 |
| _version_ | 1855528313946112000 |
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| author | de Brauw, Alan Eozenou, Patrick Gilligan, Daniel O. Hotz, Christine Kumar, Neha Meenakshi, J.V. |
| author_browse | Eozenou, Patrick Gilligan, Daniel O. Hotz, Christine Kumar, Neha Meenakshi, J.V. de Brauw, Alan |
| author_facet | de Brauw, Alan Eozenou, Patrick Gilligan, Daniel O. Hotz, Christine Kumar, Neha Meenakshi, J.V. |
| author_sort | de Brauw, Alan |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Biofortification is a promising strategy to combat micronutrient malnutrition by promoting the adoption of staple food crops bred to be dense sources of specific micronutrients. Research on biofortified orange-fleshed sweet potato (OFSP) has shown that the crop improves the vitamin A status of children who consume as little as 100 grams per day, and intensive promotion strategies improve dietary intakes of vitamin A in field experiments. However, little is known about OFSP adoption behavior, or about the role that nutrition information plays in promoting adoption and changing diet. We report evidence from similar randomized field experiments conducted in Mozambique and Uganda to promote OFSP. We further use causal mediation analysis to study impact pathways for adoption and dietary intakes. Despite different agronomic conditions and sweet potato cropping patterns across the two countries, the project had similar impacts, leading to adoption by 61% to 68% of farmers exposed to the project, and doubling vitamin A intakes in children. In both countries, two intervention models that differed in training intensity and cost had comparable impacts relative to the control group. The project increased the knowledge of key nutrition messages; however, added knowledge of nutrition messages appears to have minimally affected adoption, conditional on assumptions required for causal mediation analysis. Increased vitamin A intakes were largely explained by adoption and not by nutrition knowledge gained, though in Uganda a large share of impacts on vitamin A intakes cannot be explained by mediating variables. Similar impacts could likely have been achieved by reducing the scope of nutrition trainings. |
| format | Journal Article |
| id | CGSpace146387 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Agricultural and Applied Economics Association |
| publisherStr | Agricultural and Applied Economics Association |
| record_format | dspace |
| spelling | CGSpace1463872025-02-24T06:47:21Z Biofortification, crop adoption and health information: Impact pathways in Mozambique and Uganda de Brauw, Alan Eozenou, Patrick Gilligan, Daniel O. Hotz, Christine Kumar, Neha Meenakshi, J.V. sweet potato potatoes biofortification crops vitamin a deficiency retinol micronutrient deficiencies malnutrition nutrition trace elements Biofortification is a promising strategy to combat micronutrient malnutrition by promoting the adoption of staple food crops bred to be dense sources of specific micronutrients. Research on biofortified orange-fleshed sweet potato (OFSP) has shown that the crop improves the vitamin A status of children who consume as little as 100 grams per day, and intensive promotion strategies improve dietary intakes of vitamin A in field experiments. However, little is known about OFSP adoption behavior, or about the role that nutrition information plays in promoting adoption and changing diet. We report evidence from similar randomized field experiments conducted in Mozambique and Uganda to promote OFSP. We further use causal mediation analysis to study impact pathways for adoption and dietary intakes. Despite different agronomic conditions and sweet potato cropping patterns across the two countries, the project had similar impacts, leading to adoption by 61% to 68% of farmers exposed to the project, and doubling vitamin A intakes in children. In both countries, two intervention models that differed in training intensity and cost had comparable impacts relative to the control group. The project increased the knowledge of key nutrition messages; however, added knowledge of nutrition messages appears to have minimally affected adoption, conditional on assumptions required for causal mediation analysis. Increased vitamin A intakes were largely explained by adoption and not by nutrition knowledge gained, though in Uganda a large share of impacts on vitamin A intakes cannot be explained by mediating variables. Similar impacts could likely have been achieved by reducing the scope of nutrition trainings. 2018-12-10 2024-06-21T09:06:53Z 2024-06-21T09:06:53Z Journal Article https://hdl.handle.net/10568/146387 en http://purl.umn.edu/150514 Open Access Agricultural and Applied Economics Association de Brauw, Alan; Eozenou, Patrick; Gilligan, Daniel; Hotz, Christine; Kumar, Neha; and Meenakshi, J.V. 2018. American Journal of Agricultural Economics 100(3): 906–930. https://doi.org/10.1093/ajae/aay005 |
| spellingShingle | sweet potato potatoes biofortification crops vitamin a deficiency retinol micronutrient deficiencies malnutrition nutrition trace elements de Brauw, Alan Eozenou, Patrick Gilligan, Daniel O. Hotz, Christine Kumar, Neha Meenakshi, J.V. Biofortification, crop adoption and health information: Impact pathways in Mozambique and Uganda |
| title | Biofortification, crop adoption and health information: Impact pathways in Mozambique and Uganda |
| title_full | Biofortification, crop adoption and health information: Impact pathways in Mozambique and Uganda |
| title_fullStr | Biofortification, crop adoption and health information: Impact pathways in Mozambique and Uganda |
| title_full_unstemmed | Biofortification, crop adoption and health information: Impact pathways in Mozambique and Uganda |
| title_short | Biofortification, crop adoption and health information: Impact pathways in Mozambique and Uganda |
| title_sort | biofortification crop adoption and health information impact pathways in mozambique and uganda |
| topic | sweet potato potatoes biofortification crops vitamin a deficiency retinol micronutrient deficiencies malnutrition nutrition trace elements |
| url | https://hdl.handle.net/10568/146387 |
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