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美国是农业大国,并且是世界农业出口大国。在粮食危机全球化背景下,研究美国这一超级粮食大国是如何对内稳定粮食供给、对外保持高出口水平对处于改革中的中国有着重要意义。该文利用美国1986~2013年的实际数据做实证分析研究。利用协整分析,证明了在长期美国的农业支持水平对该国农业生产水平的影响;Granger因果检验证明美国农业支持水平和农业产值的相互作用;结合美国农业财政政策,得出美国农业发展启示。
The United States is a big agricultural country and is a major exporter of agriculture in the world. In the context of the globalization of food crisis, it is of great significance to study how the United States as a super-grain power to stabilize food supply within the country and maintain a high export level to China undergoing reforms. This paper uses the actual data from 1986 to 2013 in the United States to do empirical analysis. Cointegration analysis was used to demonstrate the effect of the level of agricultural support in the United States on the level of agricultural production in the country in the long run. The Granger causality test proves the interaction between the level of agricultural support and agricultural output in the United States. .