Based on the perspective of the economic cy-cle of"production,distribution,circulation and consumption",this paper expounds the impact of the opening of the China-Eu-rope Railway Express(CRE)on the new development pattern of"dual circulation",constructs an LS model of two countries and three regions with asymmetric initial endowment,and analyzes the effect of the coordinated development of the regional economy with the effective linkage between the opening of CRE and the"dual circulation".It is found that the opening of CRE can sig-nificantly empower the coordinated development of the regional economy,and the effect of the opening of the regional economic coordinated development of CRE is more significant in the cen-tral and western regions,the regions of assembly center of CRE,and the cities with small economic scale.The results of the mechanism test show that CRE promotes the coordinated devel-opment of the regional economy by promoting domestic and inter-national dual circulation.Further analysis shows that transporta-tion cost optimization,multimodal transport development and sustainable development are conducive to promoting the high-quality development of CRE,thereby strengthening the enabling role of CRE in the coordinated development of the regional econ-omy.This paper provides a new perspective for the study of the economic potential of CRE,and provides a reference for promo-ting coordinated development between regions under the new de-velopment pattern.
China-Europe Railway Expressdual circulationcoordinated development of regional economyMul-tiple Time Periods Difference-In-Difference
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