关键词: 西部陆海新通道；节点城市；经济影响；双重差分模型；空间杜宾模型

Abstract: This paper uses panel data of Chinese cities from 2010—2019 and double difference method to empirically analyze the construction of the new western landsea corridor to study the impact of the construction of the new western landsea corridor on the economic development of node cities. It is found: 1） the construction of the new western landsea corridor has a significant enhancement effect on the growth of real GDP of node cities， but has a significant inhibitory effect on the growth rate of real GDP; 2） the construction of the new western landsea corridor has a significant boosting effect on the real GDP of the cities in the central and western parts of the corridor， and a negative effect on the real GDP growth rate of the cities in the eastern part of the corridor than that of the cities in the central and western parts of the corridor; the construction of the new western landsea corridor contributes significantly more to the real GDP of cities with lower education level than those with higher education level， and has a significant negative effect on the real GDP growth rate of cities with higher education level; 3） there is no spatial spillover effect of the economic development of the node cities of the new western landsea corridor on the neighboring areas.

Key words: the new western landsea corridor; node cities; economic impact; double difference model; space Dubin model