The Influence of Commodity Programs on Acreage Response to Market Price: With an Illustration Concerning Rice Policy in the United States
提出一种方法,利用商品计划的激励和约束信息识别种植面积对市场价格的结构性反应参数,并以美国水稻数据为例,说明忽略计划规则会低估参数三到四倍。
Farm programs influence the parameters of typically estimated supply functions. We develop and apply an approach that uses detailed information about farm program incentives and constraints to identify underlying structural acreage response parameters when the data reflect behavior under complex government commodity programs. We illustrate the approach with data on rice acreage response to market price in the United States. For U.S. rice, estimates that fail to appropriately incorporate the program rules under which market data were generated are three to four times smaller than the structural parameters that are useful for most policy analysis or projections under alternative policies.