A study of the commercial growing of Bacillus thuringiensis (Bt) cotton in India, compares the performance of over 9 …,000 Bt and non-Bt cotton farm plots in Maharashtra over the 2002 and 2003 seasons. Results show that since their commercial … release in 2002, Bt cotton varieties have had a significant positive impact on average yields and on the economic performance …

region with multiple corn, cotton, and soybean fields infested by a mobile pest. Returns are highest, pyrethroid sprays occur … the current 20% refuge requirement costs the producer $8.67 per cotton acre, or $34.21 per nonBt cotton acre. Returns are … highest under each refuge requirement when one-toxin Bt cotton is not phased out; however, removal of the technology at the …

unique panel data of 533 cotton farmers, collected in India between 2002 and 2008, to analyze Bt impacts on cotton yield …While several studies have shown that genetically modified Bt cotton can benefit smallholder farmers economically, the …, profit, and household living standards. Results from fixed effects models show that the adoption of Bt cotton is associated …