title: A decade of Bt cotton in Chinese fields: assessing the direct effects and indirect externalities of Bt cotton adoption in China.
abstract: The objective of this study is to examine whether or not the gains from reduced spraying for bollworms are being sustained more than one decade after the initial adoption in 2007. Based on farm-level data collected by the authors in 1999-2007 in 16 villages from 4 provinces, this study shows that insecticides applied for controlling bollworms have declined. This analysis supports Chinese policy makers' decision to not require refuges of non-Bt cotton fields. It also suggests that past studies may have underestimated the benefits from adopting Bt technology.
authors.affiliation: Center for Chinese Agricultural Policy, Institute of Geographical Sciences and Natural Resource Research, Chinese Academy of Sciences, Beijing, China. jkhuang.ccap@igsnrr.ac.cn
authors.forename: JiKun
authors.initials: J
authors.lastname: Huang
authors.forename: JianWei
authors.initials: J
authors.lastname: Mi
authors.forename: Hai
authors.initials: H
authors.lastname: Lin
authors.forename: ZiJun
authors.initials: Z
authors.lastname: Wang
authors.forename: RuiJian
authors.initials: R
authors.lastname: Chen
authors.forename: RuiFa
authors.initials: R
authors.lastname: Hu
authors.forename: Scott
authors.initials: S
authors.lastname: Rozelle
authors.forename: Carl
authors.initials: C
authors.lastname: Pray
mesh_terms: D001413:Bacillus thuringiensis; D001427:Bacterial Toxins; D002681:China; D003368:Gossypium; D007306:Insecticides
chemical_list: D001427:Bacterial Toxins; D007306:Insecticides