Adoption of Bt Cotton and Impact Variability: Insights from India

Posted: 16 Feb 2007

See all articles by Matin Qaim

Matin Qaim

University of Bonn; University of Hohenheim - Department of Agricultural Economics and Social Sciences

Arjunan Subramanian

Glasgow University

Gopal Naik

Center for Public Policy, Indian Institute of Management Bangalore

David Zilberman

University of California, Berkeley - Department of Agricultural & Resource Economics

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.

Suggested Citation

Qaim, Matin and Subramanian, Arjunan and Naik, Gopal and Zilberman, David, Adoption of Bt Cotton and Impact Variability: Insights from India. Review of Agricultural Economics, Vol. 28, No. 1, pp. 48-58, March 2006. Available at SSRN: https://ssrn.com/abstract=963497 or http://dx.doi.org/10.1111/j.1467-9353.2006.00272.x

Matin Qaim (Contact Author)

University of Bonn ( email )

Postfach 2220
53012 Bonn
Germany
+49 0 228 73 1872 (Phone)

University of Hohenheim - Department of Agricultural Economics and Social Sciences

70593 Stuttgart
Germany
+ 49 0711 459 2784 (Phone)
+ 49 0711 459 3762 (Fax)

Arjunan Subramanian

Glasgow University ( email )

Adam Smith Building
Glasgow, Scotland G12 8RT
United Kingdom

Gopal Naik

Center for Public Policy, Indian Institute of Management Bangalore ( email )

Bannerghatta Road
Bangalore, Karnataka 560 076
India
2699-3194 (Phone)

David Zilberman

University of California, Berkeley - Department of Agricultural & Resource Economics ( email )

Berkeley, CA 94720
United States

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