Poverty and yield effects of CGIAR maize varieties in smallholder farming systems of Zambia
Improved germplasm is a recognized adaptation strategy to climate change. We assessed the adoption, and impacts of CGIAR maize varieties on livelihoods in Zambia using fixed effects regression and a difference-in-differences framework. Three-waves of nationally representative panel data indicate tha...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Wiley Periodicals LLC.
2025
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/178358 |
| _version_ | 1855516204557402112 |
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| author | Ngoma, Hambulo Setimela, Peter Silva, João Vasco Krishna, Vijesh |
| author_browse | Krishna, Vijesh Ngoma, Hambulo Setimela, Peter Silva, João Vasco |
| author_facet | Ngoma, Hambulo Setimela, Peter Silva, João Vasco Krishna, Vijesh |
| author_sort | Ngoma, Hambulo |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Improved germplasm is a recognized adaptation strategy to climate change. We assessed the adoption, and impacts of CGIAR maize varieties on livelihoods in Zambia using fixed effects regression and a difference-in-differences framework. Three-waves of nationally representative panel data indicate that 24% of smallholders used CGIAR germplasm on about 225,000 hectares in 2019. Relative to other non-CGIAR maize varieties, the use of CGIAR maize varieties was associated with 26–35% yield increase, and 2–10% reduction in the depth of poverty on average. Thus, while improved varieties can increase crop productivity effectively, they are not substitutes for broad-based poverty reduction strategies. |
| format | Journal Article |
| id | CGSpace178358 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Wiley Periodicals LLC. |
| publisherStr | Wiley Periodicals LLC. |
| record_format | dspace |
| spelling | CGSpace1783582025-11-28T02:01:54Z Poverty and yield effects of CGIAR maize varieties in smallholder farming systems of Zambia Ngoma, Hambulo Setimela, Peter Silva, João Vasco Krishna, Vijesh climate change impact livelihoods maize varieties smallholders farming systems Improved germplasm is a recognized adaptation strategy to climate change. We assessed the adoption, and impacts of CGIAR maize varieties on livelihoods in Zambia using fixed effects regression and a difference-in-differences framework. Three-waves of nationally representative panel data indicate that 24% of smallholders used CGIAR germplasm on about 225,000 hectares in 2019. Relative to other non-CGIAR maize varieties, the use of CGIAR maize varieties was associated with 26–35% yield increase, and 2–10% reduction in the depth of poverty on average. Thus, while improved varieties can increase crop productivity effectively, they are not substitutes for broad-based poverty reduction strategies. 2025-03 2025-11-27T20:55:02Z 2025-11-27T20:55:02Z Journal Article https://hdl.handle.net/10568/178358 en Open Access application/pdf Wiley Periodicals LLC. Ngoma, H., Setimela, P., Silva, J. V., & Krishna, V. V. (2025). Poverty and yield effects of CGIAR maize varieties in smallholder farming systems of Zambia. Journal of the Agricultural and Applied Economics Association, 4(1), 151-166. https://doi.org/10.1002/jaa2.70007 |
| spellingShingle | climate change impact livelihoods maize varieties smallholders farming systems Ngoma, Hambulo Setimela, Peter Silva, João Vasco Krishna, Vijesh Poverty and yield effects of CGIAR maize varieties in smallholder farming systems of Zambia |
| title | Poverty and yield effects of CGIAR maize varieties in smallholder farming systems of Zambia |
| title_full | Poverty and yield effects of CGIAR maize varieties in smallholder farming systems of Zambia |
| title_fullStr | Poverty and yield effects of CGIAR maize varieties in smallholder farming systems of Zambia |
| title_full_unstemmed | Poverty and yield effects of CGIAR maize varieties in smallholder farming systems of Zambia |
| title_short | Poverty and yield effects of CGIAR maize varieties in smallholder farming systems of Zambia |
| title_sort | poverty and yield effects of cgiar maize varieties in smallholder farming systems of zambia |
| topic | climate change impact livelihoods maize varieties smallholders farming systems |
| url | https://hdl.handle.net/10568/178358 |
| work_keys_str_mv | AT ngomahambulo povertyandyieldeffectsofcgiarmaizevarietiesinsmallholderfarmingsystemsofzambia AT setimelapeter povertyandyieldeffectsofcgiarmaizevarietiesinsmallholderfarmingsystemsofzambia AT silvajoaovasco povertyandyieldeffectsofcgiarmaizevarietiesinsmallholderfarmingsystemsofzambia AT krishnavijesh povertyandyieldeffectsofcgiarmaizevarietiesinsmallholderfarmingsystemsofzambia |