产业结构调整对区域环境污染的影响研究——来自中国278个地级市的证据

Study on the impact of industrial structure adjustment on regional environmental pollution Evidence from 278 prefecture-level cities in China

产业结构升级如何影响城市空气污染一直是产业经济领域的重要研究话题。以2011—2019年中国278个城市为研究对象,运用STIRPAT模型与动态空间面板计量模型,重点考察了产业结构调整对城市空气污染的影响效应及内在机制。结果表明:①产业结构调整显著降低了城市空气污染物的排放,在进行了一系列稳健性检验后结论依然成立,且技术研发和绿色创新是产业结构调整影响城市空气污染的重要机制;②异质性分析发现,产业结构调整对城市空气污染物存在负向空间溢出效应,对不同区域空气污染物的降污作用有所差异;③产业结构调整对空气污染呈现“双门槛效应”和“边际效应”非线性递增的特点,产业结构优化对城市环境污染的影响随经济发展水平不同而表现出阶段性变化。

The impact of industrial structural upgrading on urban air pollution has been a pivotal research topic in the field of industrial economics.This paper focused on 278 cities in China during the period from 2011 to 2019,employing the STIRPAT model and dynamic spatial panel econometric model to investigate the effects and underlying mechanisms of industrial structural adjustment on urban air pollution.results showed that:①Industrial structural adjustment significantly reduced the emissions of urban air pollutants,a conclusion that holded true after a series of robustness checks,with technological innovation and green development being identified as crucial mechanisms influencing the relationship between industrial structural adjustment and urban air pollution.②Heterogeneity analysis revealed negative spatial spillover effects of industrial structural adjustment on urban air pollutants,with variations observed in pollution reduction effects across different regions.③Industrial structural adjustment exhibited characteristics of nonlinear incremental effects on air pollution,with“double-threshold”and“marginal effects”indicating stage-wise changes in the impact of industrial structural optimization on urban environmental pollution,varying with different levels of economic development.