美国农业政策支持水平变化特点分析

美国是世界最大的农产品生产国和贸易国，其农业支持政策的变化对全球农业生产和农产品市场都有重要影响。文章在总结美国农业政策演变特征的基础上，分析美国农业政策支持水平的变化特点。结果显示：美国农业政策支持水平整体呈增长趋势，但生产者支持水平呈下降趋势，且对生产环节单位面积的直接补贴低于中国四项补贴的水平；美国的农业补贴主要集中在大宗产品上，且农场规模越大得到的补贴越多。

Analysis of the agricultural policy support changes in the United States of America

The U.S.A. is the largest producer and exporter of agricultural products in the world and its agricultural policy changes have a significant impact on world agricultural market. This paper summarized the evolution of U.S.A. agricultural policy and analyzed the changes of policy support level. The results showed that the U.S.A. policy support level increased but producer support decreased and the level was below the Chinas 4 major producer subsidies. The U.S.A. subsidy was mainly concentrated on bulk products and the bigger farm got more subsidy.