Entering the 21st century，The urban agglomeration has become a concentrated manifestation of urbanization development in developed countries，Become an important spatial scale for the economic development of the country and region。Current，Planning 19 urban agglomerations in my country，As of February 2019，Except outside the Guangdong -Hong Kong -Macao Greater Bay Area，The State Council has approved 11 national urban agglomerations。Among them, Beijing -Tianjin -Hebei、Yangtze River Delta、The three major areas of the Pearl River Delta have developed into the most influential economic gathering area in the country and even the Asia -Pacific region，Other urban agglomerations are still planning one after another、During the formation of development。Under the current economic situation，The construction and development of the urban agglomeration should focus on the implementation and implementation of "innovation、Coordination、Green、Open、Sharing "five major development concepts，Give full play to the complementary functions of cities in the city group，Enhance the productivity of the city through the development of urban clusters。

　　Bet365 app download

The urban agglomeration refers to the core city as the core、A collection of multiple cities formed by the four weeks of radiation。Looking at the history of economic development，With the development of different industries and the evolution of spatial layout，Between cities has gradually formed functional division of labor and collaboration，and through further urban planning to form a more closely related space network with infrastructure construction，Urban agglomeration is an objective reflection of the further development Bet365 app download of urbanization and the evolution of industrial space。

Current，The construction and development of the urban agglomeration is promoted to unprecedented strategic height in my country。Two of the three major national strategies in my country are related to the construction and development of urban agglomerations。In addition to the two major national strategies of the Beijing -Tianjin -Hebei coordinated development and the development of the Yangtze River Economic Belt，The report of the 19th National Congress of the Communist Party of China pointed out，The urban agglomerations should be used as the main body to build the coordinated urban pattern of large, medium and small cities and small towns;。It can be said，Urban agglomeration is becoming a new direction for my country's urbanization development，It is an important space carrier that meets the people's growing good life under the current international and domestic economic situation，It is also an important starting point for achieving a spatial balance mechanism and high -quality economic development。

New ideas for urban economic development

In the process of urbanization in the past few decades，Big cities are often talents、Gathering place for economic elements such as funds。The main idea of ​​the traditional urban cluster is to achieve economic growth between regions through absorbing the elements。But from the perspective of space，The problem behind this growth logic lies in ignoring the regional economic and population carrying capacity。With my country's economy entering the new normal，How to achieve high -quality growth，New topics facing urban development。Construction of the urban agglomeration，Some functions of large cities are planned to transfer to surrounding cities with a planned manner。This is here，not only solved the disease of big cities，Strengthening through economic association，Drive the further development of surrounding cities，The development of urban Bet365 app download agglomerations has become a new idea for solving urban economic development。

The three major contradictions to solve the development of urban economic development are the driving force behind the development of my country's urban agglomeration。The problem of imbalance between the development of large and medium -sized cities is increasing，Urban economic construction has exposed three major contradictions: First, the contradiction between the transfer of industrial chain and industrial transfer。Small and medium cities hope to "industrial transfer"，Flows to attract some high -quality industries and enterprises through industrial transfer，thereby breaking the low -end locking curse; while the big cities, especially the large and large cities, hope that "industrial chain transfer"，Transfer the non -core heart link in the industrial chain，Therefore, industrial upgrading and new and old kinetic energy conversion。This contradiction has led to a slowdown in the progress of industrial upgrading in large cities，And the industrial positioning of small and medium -sized cities is blurred，Not only is it inconsistent with the city but vicious competition，As a result, some labor -intensive industries transfer to Southeast Asia。Second, there are contradictions in economic growth and environmental protection。Under the lack of technical and capital conditions，Small and medium -sized cities are not only difficult to achieve "green water and green mountains", but "Jinshan Yinshan"，It is easy to become a "pollution asylum"。Three is talent、Technology and capital flow imbalance。Especially small and medium cities in the central and western regions，Prone to occurred "Factor outflow leads to weak industrial，The vicious cycle of the weak industry caused the factors to further flow "。The vicious cycle of the weak industry caused the factors to further flow "。On the one hand，Urban clusters make large bet365 live casino games and small cities collaborate with each other，Each needs，No longer the neighbors、Fierce competition。On the other hand，Small cities in the surrounding area are relying on regional central cities，"Holding the ball heating"，Not only can it greatly alleviate the outflow of resources，And can undertake the industrial chain link transferred from the central city，Concentrated advantageous industry，Forms a dynamic comparative advantage。

　　New starting point for regional economic development

Each city has different factor endowment and development foundation，Only the comparative advantages of the cities are constantly exerting，On the basis of city interoperability，Form complementary and interconnection，can the overall development of the urban agglomerate，To maximize the use of total efficiency。Converse，If the city cannot play their respective advantages，It is prone to improper competition，Forms invalid output supply and vicious resource competition，This is also an important aspect of my country's supply -side structural reform。Urban agglomeration as a new starting point for regional economic development and construction，It is a manifestation of the basic laws of economics。

The moment that pays more attention to the quality of economic development，The overall development of the urban agglomeration also means higher quality economic growth -the construction and development process of urban agglomerations，Not only a process of promoting total growth，It is also a process of liberation and development of productivity。This process is not only between cities in the urban agglomeration through different elements of endowment，Forms a more optimized economic structure in the regional spatial structure，It is also manifested in the via industry through various industries to move between different cities in the city group、Upgrade，and then form a new industrial structure within various cities。Bet365 app download Some links of some industries or industrial chains in the original cities in the original cities are developed in their surrounding related cities in new forms，not only drives the economy of surrounding cities，It also relieves the environment and resource pressure carried by the development of central cities，At the same time, the industrial upgrade of the central city has moved out of development space。

From the perspective of urban economics theory，Urban cluster not only maintains the scale economic advantage of traditional cities gather，further cultivating the scope of space in space economy and regional synergy effect，Release the technical spillover effect to a greater extent，The comparative advantage formed by the industrial division of labor emphasized by classical economics theory at the same time expands to a larger level of regional division of labor。Take Beijing as an example，From 2014，Beijing clarified the strategic positioning of its capital city，and began to order "non -capital" function in the surrounding area。For more than five years，Beijing's air quality has been significantly improved，The industrial structure is continuously optimized，and through the planning and construction of the intensive carrier of the function of the Beijing Urban Sub -Middle and Xiong'an Capital，Further expands Beijing's overall strategic space pattern，Open a new situation in the construction of the Beijing -Tianjin -Hebei world -class urban agglomeration。

　　Integrated into the global innovation network and industrial chain

First，With the globalization of economic globalization,，During the development of urban agglomerations, we must pay more attention to integrating into the global innovation network and industrial chain，Coordinated improvement of the city's full factor productivity。For the Yangtze River Delta、Mature urban agglomerations such as the Pearl River Delta and Beijing -Tianjin -Hebei，It should be developed in the direction of the Bet365 app download world -class urban agglomeration，Pay attention to industrial innovation within the urban agglomeration，Make it driven by my country's northern economic revitalization、The regional growth pole where the economy continues to flourish。With the smart city、Construction of the digital economy，The development of the urban agglomeration must also keep up with the times，Fully cultivate technical advantages，Can't take the old road that can be developed anymore。

Next，For other urban agglomerations in the process of formation，Construction of "Five -State"。The development and construction of the urban agglomeration is not only in the economic sense，Pay more attention to its meaning of people's livelihood and cultural connotation，Pay attention to the natural environment in the urban agglomeration、Common construction of the human environment and social environment。other，Market cluster and urban agglomeration are not the second choice of one、Unsatisfactory，Urban groups during the formation process must continue to gather internal urban agglomerations; you cannot blindly imitate the mature urban agglomeration，In particular, it cannot cross the laws of economic development，simply relying on infrastructure construction to build urban agglomerations。

Last，The concept of urban agglomeration itself emphasizes the division of labor and collaboration between cities。The other side of the rapid development of my country's economy is the current economic development and there are still imbalances and inadequate situations，The economic development results of some big cities cannot benefit more people。Overall planning in the urban agglomeration、Under the guidance of common development，Further play the role of driving demonstration in the central city，Reduce various barriers between cities，Coordinated development、Co -construction and sharing becomes the core and important purpose of future urban economic work。

　　(This article is the National Social Science Fund Youth Project "Growth、China's best city scale research under the environment and crowded triple effects "(18cjy015) phased results)

(Author Unit: Renmin University of China Business School; School of Economics, Sichuan University)