生产性服务业集聚如何促进产业结构升级?——基于集聚外部性与城市规模约束的实证分析

How Does Producer Service Industry Agglomeration Promote Industrial Upgrading?: An Empirical Analysis Based on Agglomeration Externality and Urban Scale Constraints

文章构建了生产性服务业集聚与产业结构升级的理论分析框架,并基于中国城市数据,运用动态空间面板模型和门槛面板模型进行了实证检验。研究发现,生产性服务业集聚主要通过Porter外部性促进了产业结构升级,而生产性服务业集聚的MAR外部性和Jacobs外部性对产业结构升级存在显著的抑制效应。但生产性服务业集聚对产业结构升级的影响受制于城市规模:当城市规模分别超过151.51万人和154.07万人的规模门槛时,生产性服务业集聚的MAR外部性和Jacobs外部性对产业结构升级的"抑制效应"将转化为"促进效应";而生产性服务业集聚的Porter外部性对产业结构升级的"促进效应"会随着城市规模扩大而增强,也证实了生产性服务业集聚在促进产业结构升级方面存在明显的"大城市优势"。

This paper constructs a theoretical framework for producer service industry agglomeration on industrial structural upgrading. Based on the data of China's cities, this paper use the dynamic spatial panel model and the threshold panel model to test the mechanism and framework. It is found that producer service industry agglomeration mainly promotes industrial structural through the externalities of Porter, while the MAR externality and Jacobs externality of producer service industry have a significant suppression effect on industrial structural upgrading. But the effect of producer service industry agglomeration on industrial structural upgrading is subject to the constraints of the scale of cities. When the scale of a city exceeds the threshold of 1.5151 million or 1. 5407 million, the suppression effect of MAR externality and Jacobs externalities of producer service industry agglomeration on the industrial structure will be transformed into promoting effect. The promotion effect of the Porter externality of the industrial service industry on industrial structural upgrading will increase with the continuous expansion of the scale of cities, thus confirming the existence of big city advantages.