Since the reform and opening up,China has completed the urbanization process of 60%of the population.With the advancement of urbanization,my country’s industries are continuously agglomerating.At the same time,with industrial agglomeration as the driving force,our country’s population is also gathering.Because the agglomeration of industries has brought about increasing returns to scale,in order to continue to expand the production capacity of manufacturers,the agglomeration industries will absorb a large number of people as labor,thereby bringing about population agglomeration.While population agglomeration provides sufficient labor for the industry,it also brings huge consumer demand,and a huge market has also emerged.Under the influence of the market competition mechanism,producers increase production input or continue to upgrade products and expand production capacity in innovative ways to enter a virtuous circle.The most direct manifestation at the macro level is the expansion of population clusters.With the help of various conditions,including geographical location conditions,natural resource conditions,political policy conditions,etc.,urban agglomerations with different development levels have emerged in all parts of our country.The emergence of urban agglomerations is a manifestation of the concentration of resources in order to improve their utility.At the same time,the accelerating economic development of our country puts forward higher requirements for agglomeration and integrated development of our cities.In order to assist this process,this paper studies the development of the urban population in my country,and uses the most important urban agglomerations in my country to find out the relationship between the urban population development and the changes in the secondary and tertiary industries.This article is based on New Economic Geography,Industrial Diffusion Theory and Population Agglomeration Theory,and refers to the theoretical models of Han Feng and Li Yushuang in the 2019 study to construct the theoretical framework of this article.In order to further understand the urban population scale of China’s major urban agglomerations and the agglomeration of secondary and tertiary industries,this article collected the Yangtze River Delta urban agglomeration,the Pan-Pearl River Delta urban agglomeration,the Beijing-Tianjin-Hebei urban agglomeration,and the Middle Delta urban agglomeration(the middle reaches of the Yangtze River).The panel data of 93 municipalities and prefecture-level cities from 2000 to 2018 analyzed the urban population size,secondary and tertiary industry agglomeration,educational resource endowment,energy endowment,transportation resource endowment,medical resource endowment,greening ecological resource endowment and other variables.In the choice of the measurement model,this article uses Hausman’s test to determine the most appropriate model is the fixed effects model.The main conclusions obtained in this paper are as follows:First,from the overall regression results of China’s major urban agglomerations,whether it is agglomeration of the secondary industry or the agglomeration of the tertiary industry,it has a significant positive effect on the population growth of these major urban agglomerations in my country.This shows that in the most economically developed areas of China,the dividends brought by industrial agglomeration still exist as a whole,and the degree of population agglomeration still has a large room for increase.But the secondary and tertiary industries have different effects on population attraction.Second,through regression analysis of certain core cities,it is found that the tertiary industry in these core cities completely dominates the population agglomeration of these cities.On the contrary,the impact of the agglomeration of the secondary industry on the population is not significant or it has a significant negative impact on it.This shows that the agglomeration and development of the secondary industry in these cities has caused a congestion effect,and the congestion has caused the government to introduce policies to guide the secondary industry,or the manufacturers of the secondary industry have left these cities in order to avoid high costs,causing the proportion of employment in the secondary industry in these cities to decline.Third,non-core cities are affected by regional integration and are accelerating population agglomeration driven by the secondary and tertiary industries.Combining the regression results of core cities,it can be found that non-core cities in certain regions are better receiving the transfer of secondary industries from core cities.However,some non-core cities have a polarization effect due to the excessive occupation of geographical location resources by the only core city in the region,resulting in the non-core cities not being able to receive industrial transfer well.Fourth,through the horizontal comparison of the overall regression of several urban agglomerations,it is found that,except for the middle reaches of the Yangtze River,the coefficients of the third industry agglomeration of the other three urban agglomerations are all greater than the coefficients of the second industry agglomeration.People in the tertiary industry have higher salaries,which makes them capable of bringing their families into these areas.As for the middle reaches of the Yangtze River,it should be because of its secondary industry-led industrial structure that the coefficient of the secondary industry is greater than that of the tertiary industry. |