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Adoption of Bt Cotton and Impact Variability: Insights from India

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  • Matin Qaim
  • Arjunan Subramanian
  • Gopal Naik
  • David Zilberman

Abstract

There is a growing body of literature about the impacts of Bacillus thuringiensis (Bt) cotton in developing countries. While many studies show remarkable benefits for farmers, there are also reports that question these results. Most previous studies consider impacts in deterministic terms, neglecting existing variability. Here we explain the main factors influencing the agronomic and economic outcomes. Apart from differences in pest pressure and patterns of pesticide use, germplasm effects can play an important role. Theoretical arguments are supported by empirical evidence from India. Better understanding of impact variability can help explain some of the paradoxes in the recent controversy over genetically modified crops. Copyright 2006, Oxford University Press.

Suggested Citation

  • Matin Qaim & Arjunan Subramanian & Gopal Naik & David Zilberman, 2006. "Adoption of Bt Cotton and Impact Variability: Insights from India," Review of Agricultural Economics, Agricultural and Applied Economics Association, vol. 28(1), pages 48-58.
    • Handle: RePEc:oup:revage:v:28:y:2006:i:1:p:48-58
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    1. Qaim, Matin & De Janvry, Alain, 2005. "Bt cotton and pesticide use in Argentina: economic and environmental effects," Environment and Development Economics, Cambridge University Press, vol. 10(2), pages 179-200, May.
    2. Beyers, Lindie & Thirtle, Colin G., 2003. "Can Gm-Technologies Help African Smallholders? The Impact Of Bt Cotton In The Makhathini Flats Of Kwazulu-Natal," 2003 Annual Meeting, August 16-22, 2003, Durban, South Africa 25922, International Association of Agricultural Economists.
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