多中心城市空间结构能够提升供应链效率吗?

Can Polycentric Urban Spatial Structure Promote Supply Chain Efficiency?

以2008—2019年中国237个城市为研究对象,利用LandScan人口分布数据并结合沪深A股上市企业库存周转数据,探讨城市空间结构对供应链效率的影响效应与作用机制。研究发现,多中心城市空间布局显著促进了供应链效率提升,该结论在一系列稳健性检验后仍然成立。机制检验显示,多中心城市空间结构能有效优化城市交通网络、降低城市内部资本与劳动力错配程度,并加快企业技术创新、降低供应商集中度,通过这些路径对供应链效率产生正向影响。异质性分析表明,多中心城市空间结构对供应链效率的提升作用在经济发展水平较高的东部地区城市、人口规模较大城市以及全国供应链创新与应用示范城市中更为显著。此外,多中心城市空间结构对大型企业、高技术产业内企业和国有企业供应链效率的提升效果也更加明显。以上研究结论为理解城市空间结构与供应链效率之间的关系提供了经验依据,并为依托空间布局实现供应链优化的城市发展实践提供有益参考。

Taking 237 cities in China from 2008 to 2019 as research objects,this paper uses LandScan population distribution data and combined with inventory turnover data of Shanghai and Shenzhen A-share listed enterprises to explore the effect and mechanism of urban spatial structure on supply chain efficiency.The study finds that the layout of polycentric urban space significantly promotes the improvement of supply chain efficiency,and this conclusion still holds after a series of robustness tests.Mechanism test shows that the polycentric urban spatial structure can effectively optimize urban transportation network,reduce the degree of capital and labor mismatch within the city,accelerate the technological innovation of enterprises,and reduce the concentration of suppliers,leading to positive impacts on supply chain efficiency.Heterogeneity analysis shows that the improvement effect of the structure on supply chain efficiency is more significant in eastern cities with higher economic development level,cities with larger population size and national supply chain innovation and application demonstration cities.In addition,the improvement effect is more obvious in large enterprises,high-tech enterprises and state-owned enterprises.The above conclusions provide theoretical basis to understand the relationship between urban spatial structure and supply chain efficiency,and provide useful references for urban development practice to realize supply chain optimization based on spatial layout.