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Fifteen Years of Bt Cotton in China: Results from Household Surveys

Fangbin Qiao, Jikun Huang and Xiaobing Wang

World Development, 2017, vol. 98, issue C, 351-359

Abstract: The short-run benefit of insect-resistant Bacillus thuringiensis (Bt) crops has been well documented, but its sustainability in the long run has not been well studied. On the other hand, pest resistance build-up and secondary pest outbreaks have caused concern regarding the sustainability of this benefit. Using seven unique waves of panel data collected during 1999–2012, we show that pesticide use against bollworms has not increased significantly over time, indicating that the buildup of pest resistance is still not a concern because of the existence of a large number of nature refuge areas. In addition, we show that Bt cotton adoption has not led to outbreaks of secondary pests. Finally, we show that the benefit has been shared by both Bt and non-Bt cotton adopters as the widespread adoption of Bt cotton has successfully suppressed the density of the pest population regionally. We conclude that the benefit of Bt cotton adoption continues 15years after its introduction, albeit with evidence of a decline in the comparative advantage over non-Bt cotton in late adoption period. We believe that this contribution is theoretically and practically relevant because of the long length of our dataset and because we categorize pesticide use into that for controlling bollworms and that for controlling secondary pests.

Keywords: pesticide use; benefit sustainability; household panel data; Bacillus thuringiensis cotton; China (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:wdevel:v:98:y:2017:i:c:p:351-359

DOI: 10.1016/j.worlddev.2017.05.006

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