我国高速铁路对城市贸易发展的影响分析 ——基于对外开放程度不同城市的实证

高速铁路凭借其特有的技术经济特性成为影响城市贸易发展的重要驱动力，但其对城市进出口贸易有何影响及如何影响需进一步探索。通过对三个开放等级度56个城市的2006-2018年面板数据，运用双重差分模型(DID)进行实证研究，分析出高铁对城市贸易发展的影响情况。结论表明：高铁对开放程度较低城市的贸易发展有显著的促进作用；高铁对总体城市的贸易发展的影响并不显著；高铁主要是通过促进城市进口贸易的发展来提升城市贸易的整体水平。

Research on the Impact of Chinese High-speed Railway on the Development of City Trade ----Demonstration based on different open cities

High-speed railways have become an important driving force influencing the development of urban trade due to their unique technical and economic characteristics. However, further exploration is needed to explore how it affects urban import and export trade. Through the 2006-2018 panel data of 56 cities with three levels of openness, the double difference model (DID) is used to conduct empirical research to analyze the impact of high-speed rail on urban trade development. The conclusion shows that: high-speed rail has no significant impact on overall urban trade development; high-speed rail has a significant role in promoting trade development in cities with a lower degree of openness; high-speed rail mainly promotes the development of urban import trade to improve the overall level of urban trade.