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Heterogeneous and conditional returns from DT maize for farmers in Southern Africa
[Long term consequences of early childhood malnutrition]

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  • Laura A Paul

Abstract

This paper assesses the relative advantage of drought-tolerant (DT) maize, conditional on drought severity, using an unbalanced panel of 4 years of on-farm yield trials and high-resolution precipitation data (10-day measurements at a 0.05° resolution) in Malawi, Zambia, Mozambique and Zimbabwe. Under rain-fed conditions, DT maize yield exceeds that of other varieties: 7 per cent higher yields on average and 15 per cent higher yields under moderate drought stress. While this contrasts with higher estimates measured in controlled trials, it nonetheless represents an economically significant advantage. This study further measures heterogeneity in the relative advantage conditional using conditional quantile analysis.

Suggested Citation

  • Laura A Paul, 2021. "Heterogeneous and conditional returns from DT maize for farmers in Southern Africa [Long term consequences of early childhood malnutrition]," European Review of Agricultural Economics, Oxford University Press and the European Agricultural and Applied Economics Publications Foundation, vol. 48(5), pages 1224-1248.
    • Handle: RePEc:oup:erevae:v:48:y:2021:i:5:p:1224-1248.
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    9. Samson P. Katengeza & Stein T. Holden, 2021. "Productivity impact of drought tolerant maize varieties under rainfall stress in Malawi: A continuous treatment approach," Agricultural Economics, International Association of Agricultural Economists, vol. 52(1), pages 157-171, January.
    10. Nigatu, Getachew & Hansen, James, 2019. "Low Growth in Corn Yields Has Dragged Down Sub-Saharan African Corn Production," Amber Waves:The Economics of Food, Farming, Natural Resources, and Rural America, United States Department of Agriculture, Economic Research Service, vol. 0(10), November.
    11. Sebastain N. Awondo & Genti Kostandini & Peter Setimela & Olaf Erenstein, 2020. "Multi‐Site Bundling of Drought Tolerant Maize Varieties and Index Insurance," Journal of Agricultural Economics, Wiley Blackwell, vol. 71(1), pages 239-259, February.
    12. Martey, Edward & Etwire, Prince M. & Kuwornu, John K.M., 2020. "Economic impacts of smallholder farmers’ adoption of drought-tolerant maize varieties," Land Use Policy, Elsevier, vol. 94(C).
    13. Monica Fisher & Tsedeke Abate & Rodney Lunduka & Woinishet Asnake & Yoseph Alemayehu & Ruth Madulu, 2015. "Drought tolerant maize for farmer adaptation to drought in sub-Saharan Africa: Determinants of adoption in eastern and southern Africa," Climatic Change, Springer, vol. 133(2), pages 283-299, November.
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    Cited by:

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    3. Clifton Makate & Marshall Makate, 2022. "Do Rainfall Shocks Prompt Commercial Input Purchases Amongst Smallholder Farmers in Diverse Regions and Environments in Malawi?," Sustainability, MDPI, vol. 14(22), pages 1-31, November.

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