文章通过向量自回归理论的脉冲响应函数,在以中美双边经贸为传导纽带的基础上建立了冲击反应模型,定量分析了中美间经济相互冲击的效果。同时利用方差分解技术,分析了冲击因素对两国经济的影响及其贡献率大小,实证结果显示:美国经济对中国经济的冲击效果相当明显,中国经济对美国经济的依赖性越来越大。 Through the impulse response function of vector autoregression theory, the article establishes the impact response model based on the Sino-US bilateral economic and trade ties as the conduction link, and quantitatively analyzes the mutual impact between China and the United States. At the same time, we use the variance decomposition technique to analyze the impact of the impact factors on the economies of the two countries and their contribution rate. Empirical results show that the impact of the U.S. economy on China’s economy is quite obvious. China’s economy depends more and more on the U.S. economy.