May 14, 2020，The Standing Committee of the Political Bureau of the Central Committee officially proposed，To deepen the supply -side structural reform，Give full play to my country's oversized market advantages and domestic demand potential，Construct a new development pattern of mutual promotion of domestic and international dual cycles "。Dual cycles not only require factors supply and market demand to form effective linkage，At the same time, it also needs to fully improve the space synergy of my country's urban development，Enhance the absorption capacity of various production factors and the digestive ability of the product market，To better play the spatial toughness and scale advantage of the large domestic market。

Reasonable guidance elements flow according to the advantages of local space agglomeration，Forms a suitable industrial development and agglomeration model with local characteristics，Effective linkage with factors supply and market demand drives the expansion of urban scale、Open the cycle between the production links of the city，For the promotion of the formation of a large domestic cycle as the main body、The new development pattern of domestic and international dual cycles is important。

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The expansion of the urban scale in my country still has the characteristics of inadequate overall unbalanced distribution between the city，This greatly limits the performance of the overall economic effect of my country's market。

First，The expansion of the urban population in my country is still not enough，Urban population absorption ability and bearing capacity need to be improved。2019 World Bank data display，China's urban population agglomeration is not only significantly lower than in developed countries，and behind Mexico, bet365 best casino games which lags behind the similar development stage、Brazil、South Africa and other countries。The urbanization rate of the resident population in China in 2019 is 60.60%，The United States that is more than the same per capita GDP、UK、France is 13.10%as low as、17.48%and 12.51%。This shows that my country's cities have not reached the optimal scale as a whole，Urban population absorption ability and bearing capacity still needs to be improved。

Next，The distribution of the scale space of my country's urban scale is obviously unbalanced。On the one hand，Most large cities have appeared obvious crowded effects，But the population continues to gather to these cities。According to the "2019 Main City Traffic Analysis Report"，The average peak congestion delay index of oversized cities and large cities is mostly higher than large、Medium -sized city。Shenzhen、Guangzhou、Hangzhou、Chengdu、Chongqing, etc.、In 2019, the permanent population increased by second -tier cities in 2019。The population continues to gather to large cities，The population of a large city、Resource、Environmental carrying capacity and public governance capacity improvement brings tremendous pressure。On the other hand，Many small and medium -sized cities continue to flow out，2019 Jiangxi、Shanxi、Henan、Hubei、Shaanxi、Gansu and other provinces such as the net inflow of population in the provinces are only 1-2，The rest of the city's population is net outflow。

Despite the inadequate urban expansion and the imbalanced characteristics of distribution reflect the incompleteness of the space for the supply and demand of my country's labor market and the inadequate and spatial differences of the population agglomeration effect of different cities，The population still has the huge potential of reasonable flow and high efficiency configuration in the space。

　　Give play to the advantages of space gathering

The spatial power of the expansion of urban scale mainly comes from the mutual linkage and feedback mechanism that bet365 live casino games the industry gathers on the space。Relying on industrial agglomeration to promote the full expansion of the urban population，Basically, it is necessary to identify and excavate the advantages of space gathering with the city's own characteristics from the perspective of factor supply and market demand，Relying on industrial space gathering advantages，Fully enhanced the urban population agglomeration effect，The endogenous mechanism that forms the expansion of the city。

Marshall's agglomeration economic theory from the "storage pool" effect from the labor force、The intermediate investment sharing effect and the technical spillover effect explain the spatial agglomeration advantage of element supply，and the theory of new economic geography mainly analyzes the gathering advantage of the space market from the perspective of market demand。

First，Industrial agglomeration helps reduce the risk caused by the severe fluctuations in the labor market，Ensuring the stability of labor supply and demand，Improve the degree of matching between workers and enterprises，This will help enhance the city's ability to absorb labor。Next，Industrial agglomeration makes the design and production of urban products more matched，It helps to achieve the economic effect of the production scale of the middle investment product to improve the level of diversification of urban products，to improve the quality of life of urban residents。again，Industrial agglomeration has improved the opportunity and communication frequency of people's face -to -face contact，Not only is it conducive to increasing learning opportunities and social opportunities between people、Easy to exchange knowledge，It is also conducive to improving personal skills，to promote labor to gather in cities。Last，Industrial agglomeration has increased the type and quantity of local products，and consumers who are closer to large markets are easier to bet365 Play online games obtain the required diversified products at lower prices，to reduce the cost of life、Improve consumers to get sensing，and attract more consumers and potential consumers to gather in cities，The accumulated cycle between the expansion of market demand and the expansion of the urban population is finally formed。

When all cities can promote industrial agglomerations in accordance with their own or several gatherings，Cities will gradually form each characteristic、Is there any mutual communication、The development pattern of coordination and linkage，The externality of the agglomeration will also be expanded from points and surfaces to a larger space.。At the same time，Different types of labor that belongs to various industries will also be effectively configured and rational flowing in the space according to the director of their own skills and expectations，Therefore, the space collaboration and linked development of the expansion of urban scale。

　　Coordinated promotion of urban development

The characteristic facts based on inadequate expansion and unbalanced distribution based on my country's urban scale，On the basis of fully identifying the development advantages of various cities，Through the combination of various advantages，Promoting industrial development、Coordination and linkage of employment absorption and population agglomeration，This will drive the city's scale to be sufficient、Coordinated expansion，In order to give full play to the super large -scale market advantage、Building a new development pattern of "dual -cycle" lays the foundation。

First, choose the appropriate industrial agglomeration mode according to the different spatial agglomeration advantages of various cities，Orderly promote the expansion of urban scale。As a result, the urban scale is insufficient、An important reason for imbalance，It is the industrial development and agglomeration model that is not suitable for local advantages in various cities，thereby reducing the employment absorption ability of industrial agglomeration Bet365 app download and the effective traction effect on the flow of population space。On the premise of guiding cities to fully identify and tap its own advantages，Effective use of local advantages to develop appropriate industries、Promote the appropriate industrial agglomeration mode，The ability to strengthen industrial development and agglomeration and employment creation ability，to promote the expansion of the city's scale。

Second, strengthen the space interaction between the factors market and the commodity market between cities，Coordinated promotion of urban scale expansion。When the cities formulate a urban development strategy，Based on its own economic development status, choose the appropriate industrial development and agglomeration mode，It is also necessary to take into account the economic development and industrial structure of neighboring cities，Determine the positioning of myself in the surrounding cities，Make full use of the synergy effects and scale economic effects of this city and surrounding cities to promote the expansion of the city's scale。

Specifically，Large cities should choose the corresponding industrial development strategies and agglomeration models according to their own developed service industries and research and development innovation，Further enhanced the ability to absorb different skills labor，Promote the orderly expansion of the urban population scale，Relieve the congestion effect。Small and medium -sized cities rely on their own elements and resource endowment advantages、Professional talent advantage、The economic advantage of the scale of the manufacturing intermediate product，Choose an industrial development strategy with urban characteristics and comply with comparative advantages，Repeat the dilemma of the low level of the industrial structure of small and medium -sized cities，Deepen the professional division of labor，Give full play to the population absorption effect of industrial agglomeration。This aspect helps big cities to promote and develop strategic emerging industries and bet365 live casino games modern service industries as an opportunity to promote comprehensive transformation and upgrading，On the other hand, it helps to guide the population、Factors and industries spread to small and medium -sized cities，Building the foundation of technological progress and scale expansion in small and medium -sized cities，In the end, the industrial chain of different levels of industrial chain is complementary、Urban population scale coordinated expansion pattern with complementary markets and complementary functions。

Third, the combination of market leadership and government guidance，Exploring an institutional solution that enhances the ability of urban population to absorb and bearer。Cities should gradually get rid of the government -led blind city expansion mode，Full、Comprehensive、Scientific identification and excavation of its own advantages and potential advantages，Develop an advantageous industry according to local conditions、Give full play to the economic effect，Create employment to the greatest extent，Improve the efficiency and capacity of the labor market match，Enhance the city's population absorption ability and bearing capacity。

Fourth is to expand the demand for domestic market，Stable international market demand，Use domestic、The two international markets have steadily promoted urban scale expansion。Cities must strengthen the connection and cooperation with surrounding cities，Promote more cities to participate in the process of domestic market integration，Constantly expand the breadth and depth of the domestic market。At the same time，Relying on the large domestic market to continuously open up the international market，Reasonably guide the flow of factor flow and advantageous industry selection according to the changes in domestic and international market demand，The continuous development of various cities through the joint development of the domestic Bet365 lotto review market and the international market、Stable、Coordinated expansion。

　　(This article is the National Natural Science Foundation of China Youth Science Fund project "Research on Popularization of Population Urbanization Space Promotion Mechanism under the perspective" (71603124)

(Author Unit: School of Economics, Nanjing Audit University)