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中美贸易在世界贸易中举足轻重,其中在美华人起到重要作用。文章以美国华人网络为切入点,运用扩展的引力模型,采集具有华人分布的32个州2008~2013年的数据为样本,以广义二乘法进行面板数据分析,检验了美国华人网络对中美双边贸易所起到的作用。实证研究结果显示:美国华人网络对中美贸易具有正向的促进作用,东部地区表现更为突出,同时华人网络只有在华人密度达到一定数值之后,才能发挥作用。此外,华人网络截面特征显示:华人网络促进效应在对中国进出口贸易额占中等水平的州效用更显著。
Sino-U.S. Trade plays a decisive role in world trade, with the Chinese in the United States playing an important role. Taking the American Chinese network as an example, this paper uses the extended gravity model to collect the data of 32 states with Chinese distribution from 2008 to 2013 as samples. The panel data is analyzed by generalized two-factor method, The role played by trade. Empirical results show that the Chinese-American network has a positive role in promoting trade between China and the United States, and the eastern region has become more prominent. At the same time, the Chinese network can only play its role after the Chinese population reaches a certain level of density. In addition, the cross-sectional features of Chinese networks show that the promotion effect of Chinese networks is even more significant for the states that have a moderate level of import and export trade with China.