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英文文献：An Empirical Assessment of Simultaneous Ethanol Policy Changes on U.S. Agricultural Markets-对美国农业市场同时发生的乙醇政策变化的实证评估
英文文献作者：Brown, James A.,Bekkerman, Anton,Atwood, Joseph A.,Watts, Myles J.
英文文献摘要：
In the late 2000s, corn prices rose rapidly and were closely followed by prices of other major agricultural commodities. A widespread explanation for these market changes is an increased demand for corn in the production of ethanol, prompted by the introduction of programs intended to encourage biofuels production in the United States. In response to political pressures, the U.S. Congress considered amending three ethanol policies. It is likely that the interaction among the three policies can exacerbate these distortions. This study seeks to model the effects of simultaneous policy changes on multiple sectors of the blended gasoline marketing channel.
在21世纪头十年后期，玉米价格迅速上涨，其他主要农产品价格紧随其后。对这些市场变化的普遍解释是乙醇生产中对玉米的需求增加，这是由于美国引入了旨在鼓励生物燃料生产的项目。为了应对政治压力，美国国会考虑修改三项乙醇政策。这三种政策之间的相互作用可能会加剧这些扭曲。本研究旨在模拟同时发生的政策变化对混合汽油销售渠道的多个部门的影响。
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