文章基本信息

标题：Impacts of government risk management policies on hedging in futures and options:LPM2 hedge model vs. EU hedge model
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作者：Zhang, Rui (Carolyn) ; Houston, Jack E. ; Vedenov, Dmitry V. 等
期刊名称：Journal of Agribusiness
印刷版ISSN：0738-8950
出版年度：2008
期号：suppl
出版社：Journal of Agribusiness
摘要：The main objective of this study is to compare the impacts of government payments and crop insurance policies on the use of futures and options measured from a downside risk hedge model with the impacts analyzed by the expected utility (EU) hedge model. Understanding the effects of government-provided risk management tools on the private market risk management tools, such as futures and options, provides value to both crop farmers and policy makers. Comparison of the impacts from the two hedge models shows that crop farmer will hedge less in futures under the LPM2 model than under the EU hedge model. This finding indicates that model misspecification is another reason for the phenomenon that farmers actually hedge less in futures than predicted by the EU model. From the perspective of exploring new research techniques, this study applied two relatively new simulation concepts, copula simulation and conditional kernel density approach, to make the simulation assumptions less restrictive and more consistent with observations. The copula simulation applied in this study allows yield and price to have more flexible joint distribution functions than multivariate normal; the conditional kernel density approach used in farm yield simulation enables the variance of farm yield varies with county yield rather than being constant.
关键词：Down-side Risk;LPM2 Hedge Model;Government Payments;Crop Insurance Policies;Copula Simulation;Conditional Kernel Density