城市群交通基础设施对产业协同集聚的影响研究——单中心—多中心结构的调节作用

The Impact of Urban Agglomeration Transportation Infrastructure on Industrial Synergy Agglomeration——Based on the Mediating Effect of Monocentric-Polycentric Structure

基于2009-2018年的城市面板数据,在城市群范围实证检验了城市内交通基础设施和城市间交通基础设施对本城市产业协同集聚及城市间差异的影响。研究发现:城市内交通基础设施对产业协同集聚有正向影响并通过空间溢出效应缩小产业协同集聚差异;城市间交通基础设施会降低非中心城市产业协同集聚水平,也会缩小城市间产业协同集聚差异;多中心城市群的多中心性会负向调节城市内交通的作用,正向调节城市间交通的作用。因此,要不断加强城市内部交通基础设施和城市间交通基础设施建设,在合理的地理距离范围内对城市群进行规划和布局,并注重分层级和分阶段进行交通基础设施建设等。

Based on the city panel data of 2009-2018,this paper empirically examines the influence of intra-city transportation infrastructure and inter-city transportation infrastructure on industrial synergy within the city and inter-city differences.It is found that the transportation infrastructure within the city has a positive impact on industrial synergy agglomeration and narrows the difference of industrial synergy agglomeration through spatial spillover effect.Inter-city transportation infrastructure reduces the level of industrial agglomeration in non-central cities,and narrows the differences of industrial agglomeration among cities.The polycentricity of polycentric urban agglomeration negatively regulates the role of traffic in cities and positively regulates the role between cities.Therefore,it is imperative to continually enhance the urban and inter-city transportation infrastructure,to plan and layout urban clusters within a reasonable geographic distance,and to emphasize the hierarchical and phased construction of transportation infrastructure.