文章基本信息

标题：Farm Level Impacts of Bt Corn Adoption in a Developing Country: Evidence from the Philippines
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作者：Mutuc, Maria Erlinda M. ; Pan, Suwen ; Rejesus, Roderick M. 等
期刊名称：Journal of Food Distribution Research
印刷版ISSN：0047-245X
出版年度：2007
期号：SUPPL
出版社：Food Distribution Research Society
摘要：This article examines the ex post farm-level impacts of Bt corn adoption in the Philippines. Using an econometric approach that addresses simultaneity, selection, and censoring problems, we show that Bt corn adoption provides modest but statistically significant increases in farm-level yields and profits. Furthermore, our results suggest that farm-level yield and profit impacts of Bt corn adoption are underestimated when censoring in the pesticide application variable is not considered in the estimation procedures. Previous literature have emphasized the importance of simultaneity and selection problems but this is the first study that have raised the issue of censoring problems in estimating the farm-level effects of Bt corn adoption.
关键词：Bt;censoring;corn;farm level impacts genetically modified crops;pesticide use;technology adoption