国际陆海贸易新通道的贸易开放效应研究——基于融入共建“一带一路”视角

Research on Trade Opening Effect of the New International Land-Sea Trade Corridor:Based on the Perspective of Integrating Into the Joint Construction of the Belt and Road

融入共建“一带一路”是中国高水平建设国际陆海贸易新通道的重要战略定位。文章基于中国2010~2021年129个城市的面板数据,运用多期DID模型客观评估国际陆海贸易新通道的贸易开放效应。研究发现:一是相较于扩大进口规模,国际陆海贸易新通道建设更有利于刺激参建城市的出口贸易,但易受国际环境影响而呈现波动态势。二是国际陆海贸易新通道有效带动沿线欠发达城市的贸易开放,尤其位于沿海、沿边和主通道建设沿线的城市,但对通道延展带城市形成贸易虹吸效应。三是国际陆海贸易新通道通过完善物流基础设施、建设“海铁公”多式联运实现贸易开放,并与“一带一路”倡议有效联动共促中国开放发展。这些结论为国际陆海贸易新通道带动中国西部腹地开放提供可靠的经验支撑,对高质量共建“一带一路”提供重要参考。

Integrating into the joint construction of the Belt and Road(B&R)is the important strategic positioning for China's high-standard construction of the New International Land-Sea Trade Corridor(ILSTC).Based on the panel data of 129 cities in China from 2010 to 2021,this paper uses the multi-period DID model to objectively evaluate the trade opening effect of the ILSTC.The research shows that:firstly,compared with the expansion of the scale of imports,the construction of the ILSTC is more conducive to stimulating export trade of the participating cities,but it is susceptible to the influence of international environment,resulting in a fluctuating trend;secondly,the ILSTC effectively promotes trade opening of the underdeveloped cities along the ILSTC,especially those located along the coast,the border and the main corridor,but it exerts trade siphon effect on the cities along the extension belt of the corridor;thirdly,the ILSTC realizes trade opening through improving logistics infrastructure and building multimodal transport system of"railways,highways and waterways",and it is effectively linked with the Belt and Road Initiative(BRI)to jointly promote China's opening-up and development.These conclusions provide reliable empirical support for the ILSTC to drive the opening of China's western hinterland,and provide important reference for further participation in the construction of B&R.