传统和新型基础设施融合赋能双循环协调发展:测度与机制

The Integration of Traditional and New Infrastructure Enables the Coordinated Development of Dual Circulation:Measurement and Mechanism

基于中国2008-2022年省域面板数据,在测度传统和新型基础设施融合度及双循环协调发展水平的基础上,系统考察传统和新型基础设施融合对双循环协调发展的影响及作用机制。测算结果显示,中国传统和新型基础设施融合度呈现逐年增长趋势,但还有较大提升空间;中国内循环发展水平以良好态势提升,而外循环发展水平较低且增速缓慢,抑制了双循环协调发展水平提升。实证结果表明,传统和新型基础设施融合能够显著促进双循环协调发展,该结论经过一系列稳健性检验后依然成立;优化资源配置和促进产业升级是传统和新型基础设施融合赋能双循环协调发展的重要传导机制;传统和新型基础设施融合在东部、中部和西部地区对双循环协调发展均具有显著促进作用,且效应值呈现“东部>中部>西部”的特征,但在东北地区不显著。

Based on the provincial panel data of China from 2008 to 2022,on the basis of measuring the integration degree of traditional and new infrastructure and the coordination level of the dual circulation,the influence and mechanisms of the integration of traditional and new infrastructure on the coordinated development of the dual circulation are systematically investigated.The calculation results show that the integration of traditional and new infrastructure in China shows an increasing trend year by year,but there is still much room for improvement.China's internal circulation development level is growing in a good trend,while the external circulation development level is growing at a low rate and developing slowly,which inhibits the promotion of the coordinated development level of the dual circulation.The empirical results show that the integration of traditional and new infrastructure can significantly promote the coordinated development of the dual circulation,and this conclusion is still valid after a series of robustness tests.Optimizing resource allocation and promoting industrial upgrading are important transmission mechanisms for the integration of traditional and new infrastructure to promote the coordinated development of dual circulation.The integration of traditional and new infrastructure has a significant promotion effect on the coordinated development of dual circulation in the eastern,central and western regions,and the effect size presents the characteristics of"East>Central>West",but it is not significant in the Northeast Region.