The International Effects of U.S. Farm Subsidies
用动态规划分析美国农业补贴对玉米、棉花、大米和小麦出口的影响，模拟六种关贸总协定方案，发现取消补贴会降低世界价格，而严格供给控制短期内未必减少出口。
Abstract Using dynamic programming, this paper examines effects of farm subsidies on U.S. exports of corn, cotton, rice, and wheat. The six policy simulations described here explore alternative proposals in the current round of the General Agreement on Tariffs and Trade. The analysis leads to two conclusions. First, abolishing domestic subsidies lowers world prices of these crops. Second, imposing tighter supply controls may not actually decrease exports in the short run.