Farm-Level Performance of Genetically Modified Cotton

In this paper, the yield increases resulting from the cultivation of Bt cotton in Maharashtra, India, are analysed. The study relies on commercial farm, rather than trial, data and is among the first of its kind to be based on real farm and market conditions. Findings show that since its commercial release in 2002, Bt cotton has had a significant positive impact on yields and on the economic performance of cotton growers in Maharashtra. This difference remains even after controlling for different soil and insecticide inputs in the production of Bt cotton. There is also significant spatial and temporal variation in this‘benefit’, and much depends upon where production is taking place and on the season.

[1]  K. Kranthi,et al.  Modelling adaptability of cotton bollworm, Helicoverpa armigera (Hiibner) to Bt-cotton in India , 2004 .

[2]  B. Tabashnik,et al.  Binding of Bacillus thuringiensis toxins in resistant and susceptible strains of pink bollworm (Pectinophora gossypiella). , 2003, Insect biochemistry and molecular biology.

[3]  B. Tabashnik,et al.  Frequency of resistance to Bacillus thuringiensis in field populations of pink bollworm. , 2000, Proceedings of the National Academy of Sciences of the United States of America.

[4]  John Baffes,et al.  Cotton : Market setting, trade policies, and issues , 2004 .

[5]  Aziz Elbehri,et al.  Estimating the Impact of Transgenic Bt Cotton on West and Central Africa: A General Equilibrium Approach , 2004 .

[6]  Richard Bennett,et al.  Bt Cotton, Pesticides, Labour and Health , 2003 .

[7]  Richard Bennett,et al.  Farm-Level Economic Impact of Biotechnology: Smallholder Bt Cotton Farmers in South Africa , 2002 .

[8]  Greg Traxler,et al.  Transgenic Cotton in Mexico: Economic and Environmental Impacts , 2002 .

[9]  A. U.S.,et al.  FORMULATION AND ESTIMATION OF STOCHASTIC FRONTIER PRODUCTION FUNCTION MODELS , 2001 .

[10]  W. Meeusen,et al.  Efficiency Estimation from Cobb-Douglas Production Functions with Composed Error , 1977 .

[11]  Clive A. Edwards,et al.  The influence of pesticide applications on Helicoverpa armigera Hübner and sucking pests in transgenic Bt cotton and non-transgenic cotton in China , 2005 .

[12]  P. Schmidt,et al.  Production Frontiers and Panel Data , 1984 .

[13]  H. Waibel,et al.  A methodology to assess the profitability of Bt-cotton: case study results from the state of Karnataka, India , 2004 .

[14]  Scott Rozelle,et al.  Plant Biotechnology in China , 2002, Science.

[15]  Matin Qaim,et al.  BT COTTON IN ARGENTINA: ANALYZING ADOPTION AND FARMERS' WILLINGNESS TO PAY , 2002 .

[16]  J. Fox,et al.  Indian Bt gene monoculture, potential time bomb , 2005, Nature Biotechnology.

[17]  David Zilberman,et al.  Yield Effects of Genetically Modified Crops in Developing Countries , 2003, Science.

[18]  Flavia Jolliffe,et al.  Farmers’ knowledge, perceptions and practices in transgenic Bt cotton in small producer systems in Northern China , 2005 .