中国BT抗虫棉的收益、成本和影响

本文利用1999年以来关于抗虫棉采用情况的持续调查数据,检验了Bt抗虫棉的生产效果。分析表明,采用Bt抗虫棉能够提高棉花的产量;更重要的是,种植Bt抗虫棉的农户由于减少了农药和劳动力投入而增加了收入,同时,对改善环境和保护农民健康也有正面影响。中国的经验可以被其他发展中国家所借鉴。

BENEFIT,COST AND IMPACTS ANALYSIS OF BT COTTON APPLICATION IN CHINA

This paper studies the effect of Bt cotton adoption using panel data collected since1999.The econometric analyses indicate that the adoption of Bt cotton has increased cotton output in all sample provinces.More importantly,Bt cotton farmers also increased their incomes by re-ducing their use of pesticides and labor inputs.Finally,survey data show that Bt cotton has posi-tive environmental and health impacts by reducing pesticide use.We conclude that the Chinese ex-perience can be adopted by other developing...