城市群企业生产率优势来源:集聚效应或选择效应——基于2006~2018年民营上市企业的分析

The Source of Productivity Advantage of Urban Agglomeration:Agglomeration Effect or Selection Effect——Based on the Analysis of Private Listed Enterprises in 2006~2018

本文在对2006~2018年中国民营上市企业数据进行分析后发现城市群民营上市企业生产率均值要高于非城市群,即存在"城市群企业生产率优势"。在此基础上,基于"无条件分布特征——参数对应"法从集聚效应和选择效应方面对优势来源进行了识别,结果显示:"城市群企业生产率优势"是集聚效应作用的结果,选择效应作用并不显著。且不同城市群集聚效应表现不一,京津冀城市群、长三角城市群、关中平原城市群和粤港澳大湾区4个城市群内集聚经济占主导,而海峡西岸城市群和辽中南城市群内集聚不经济占主导,其他城市群集聚效应作用不明显。

This paper analyzes the data of private listed enterprises in China from 2006 to 2018,and finds that the average productivity of urban agglomeration enterprises is higher than that of non-urban agglomeration enterprises,that is to say,there is"productivity advantage of urban agglomeration enterprises".On this basis,based on the"unconditional distribution characteristics parameter correspondence"method,the paper identifies the source of advantage from agglomeration effect and selection effect.The results show that"productivity advantage of urban agglomeration enterprises"is the result of agglomeration effect,while the selection effect is not significant.And the agglomeration effect of different city clusters is different.The agglomeration economy in Beijing-Tianjin-Hebei region,the Yangtze River Delta region,Guanzhong plain region,Guangdong-Hong Kong-Macao Greater Bay Area is dominant,while the agglomeration dis-economy in the West Coast region of the Straits and Mid-southern Liaoning region is do-minant,and the agglomeration effect of other city clusters is not obvious.