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Farmer management of production risk on degraded lands: the role of wheat variety diversity in the Tigray region, Ethiopia

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  • Salvatore Di Falco
  • Jean‐Paul Chavas
  • Melinda Smale
Abstract
This article investigates the effects of wheat genetic diversity and land degradation on risk and agricultural productivity in less favored production environments of a developing agricultural economy. Drawing production data from a household survey conducted in the highlands of Ethiopia, we estimate a stochastic production function to evaluate the effects of variety richness, land degradation, and their interaction on the mean and the variance of wheat yield. Ethiopia is a center of diversity for durum wheat and farmers manage complex variety mixtures on multiple plots. Econometric evidence shows that variety richness increases farm productivity. Variety richness also reduces yield variability but only for high levels of genetic diversity. Simulations with estimated parameters illustrate how planting more diverse durum wheat varieties on multiple plots contribute to improving farmer's welfare.

Suggested Citation

  • Salvatore Di Falco & Jean‐Paul Chavas & Melinda Smale, 2007. "Farmer management of production risk on degraded lands: the role of wheat variety diversity in the Tigray region, Ethiopia," Agricultural Economics, International Association of Agricultural Economists, vol. 36(2), pages 147-156, March.
    • Handle: RePEc:bla:agecon:v:36:y:2007:i:2:p:147-156
    DOI: 10.1111/j.1574-0862.2007.00194.x
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    References listed on IDEAS

    as
    1. Pender, John L. & Place, Frank & Ehui, Simeon K., 1999. "Strategies for sustainable agricultural development in the East African highlands:," EPTD discussion papers 41, International Food Policy Research Institute (IFPRI).
    2. Davidson, Russell & MacKinnon, James G., 1993. "Estimation and Inference in Econometrics," OUP Catalogue, Oxford University Press, number 9780195060119.
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