制造业集聚、污染关联机制与绿色发展实践路径——基于空间溢出模型的研究

Manufacturing Agglomeration,Pollution Linkage Mechanism and Green Development Practical Path:A Study Based on a Spatial Spillover Model

制造业集聚对环境污染的影响机制是实践绿色发展理念的关键问题。本文构建了一个包含空间溢出效应的理论模型分析制造业集聚对污染排放的空间关联机制。模型的均衡条件显示制造业集聚的集聚效应和拥挤效应对当地市场和其他城市的产品价格指数产生影响,从而改变市场的均衡需求,并进一步通过影响生产而作用于当地的污染排放。因此,某一地区的污染排放不仅受本地制造业集聚的影响,还受到其他城市制造业集聚的影响,这体现为污染排放的空间关联性。基于均衡条件导出的空间计量模型实证研究发现:本地与异地制造业集聚对当地环境污染均具有非线性影响,而整体上制造业集聚降低了污染排放。本文结论对当前产业政策调整具有一定的启示作用,为实现地区产业协同、城市集群绿色发展提供实践依据,对统筹推进绿色低碳转型发展具有重要意义。

How does manufacturing agglomeration affect environmental pollution?This is a key issue concerning the practice of green development.This paper constructs a theoretical model that includes spatial spillover effects to analyze the spatial linkage mechanism of manufacturing agglomeration on pollution.The equilibrium conditions of the model show the agglomeration effect and crowding effect of manufacturing agglomeration have an impact on product prices in the local market and product price indices in other cities,thereby changing the equilibrium demand in the markets,and further affecting local pollution emissions through the expansion(contraction)of production.As a result,pollution emissions in a certain area are not only affected by the agglomeration of local manufacturing industries,but also by the agglomeration of manufacturing in other cities.Based on a spatial econometric model derived from the theoretical equilibrium conditions,the empirical study shows that both local manufacturing agglomeration and non-local manufacturing agglomeration have a non-linear impact on local environmental pollution,and overall manufacturing agglomeration reduces pollution emissions.The conclusions of this article have some enlightenment for the adjustments of current industrial policy,and provide a practical basis on how to achieve regional industrial coordination and implement the green development concept of urban clusters,thus significant to promote the high-quality green development of China in a coordinated manner.