Abstract: This paper elaborates the mechanism of industrial efficiency promotion on the formation of growth poleOn this basis, this paper selects three judging conditions: the level of urban regional contribution rate, the level of urban regional growth rate and the level of urban regional development, and uses the kernel density estimation method to screen and identify whether the 200 prefecture level cities in China can become China's economic growth poles during 2001 and 2018This paper empirically tests the effect mechanism of industrial efficiency on the formation of growth pole, and finds that the improvement of industrial efficiency can significantly promote the formation of growth pole, and its process mechanism is that the improvement of industrial efficiency directly promotes the formation of growth pole on the one hand, and indirectly promotes the formation of growth pole through the upgrading of industrial structure on the other handAt the same time, it is found that road infrastructure and Internet infrastructure indirectly affect the formation of growth pole by promoting industrial efficiencyPopulation size and local fiscal expenditure on science and technology also have significant positive impact on the formation of growth pole

Key words: growth poles, industrial efficiency, kernel density estimation, infrastructure

摘要： 本文阐述了工业效率的提升对增长极形成的作用机理。在此基础上，选用了城市区域贡献率水平、城市区域增长率水平和城市区域发展水平三个判定条件，运用核密度估计法对2001—2018年中国200个地级市，是否成为中国经济增长极进行了筛选和识别。本文实证检验了工业效率提升对增长极形成的作用机制，发现工业效率的提升能够显著推动增长极形成，其作用的过程机理是工业效率的提升一方面直接推动增长极形成，另一方面通过产业结构的升级间接地推动增长极的形成。同时发现，道路基础设施和互联网基础设施是通过促进工业效率提升，间接影响增长极的形成。人口规模和地方财政科技支出对增长极的形成也有显著正向影响。

关键词: 增长极, 工业效率, 核密度估计, 基础设施