In the context of high-standard opening-up,the opening of the China-Europe Railway Express may have a profound impact on the regional economy and environment.Based on the panel data of prefecture-level cities in China from 2008 to 2019,this paper analyzes the effects and mechanisms between the China-Europe Railway Express and the green total factor productivity of China's cities by using the stacked DID method.The results indicate that the China-Europe Railway Express significantly promotes the green total factor productivity of China's node cities,with heterogeneity among channels,regions,and coverage,and that China-Europe Railway Express improves the green total factor productivity of the node cities mainly by promoting green innovation,industrial agglomeration,and alleviating financing constraints.Therefore,it is necessary to encourage,support and guide more Chinese cities to become the node cities of the China-Europe Railway Express,so as to expand the range of the domestic node cities to radiate overseas markets.At the same time,the node cities should enhance their green innovation,improve the related infrastructure,create a favorable business environment,and attract more capital and high-end industries to help their high-quality development.
China-Europe Railway Expressgreen total factor productivitynode citygreen innovationindustrial agglomerationBacon's decomposition