文章基本信息

标题：MODELING INTERNATIONAL TRADE IMPACTS OF GENETICALLY MODIFIED WHEAT INTRODUCTIONS
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作者：DeVuyst, Eric A. ; Koo, Won W. ; DeVuyst, Cheryl Sinn 等
期刊名称：Journal of Food Distribution Research
印刷版ISSN：0047-245X
出版年度：2001
期号：SUPPL
出版社：Food Distribution Research Society
摘要：Planned introductions of genetically modified crop varieties can be troublesome to model. Estimation of demand and supply equations is not feasible due to lack of data. Further, specifying demand and supply equations requires calibration to a presumed equilibrium. Depending on the point chosen, highly questionable results may be obtained. We propose a model that uses existing supply, demand, and elasticity estimates. The approach relies on composite supply and demand functions. These composite functions are linear combinations of GM and non-GM varieties. We then employ this approach in a model of world wheat trade to analyze the impact of several plausible GM wheat adoption and consumer acceptability scenarios.
关键词：international trade;genetically modified organisms;producer surplus;consumer surplus;welfare;transportation cost