The Fifth Plenary Session of the 19th Central Committee of the Communist Party of China pointed out the need to “promote domestic and international dual circulation”，Accelerate the formation of a domestic circulation as the main body、The new development pattern of mutual promotion of domestic and international dual cycles is an objective requirement for China’s economic scale to develop to a certain stage。Theoretical research on spatial economics has shown that，relative to geographical location、Natural resources and other innate factors，The increasing returns to scale formed by the local market effect is an important endogenous driving force for promoting economic spatial agglomeration。As a big country with super-large market advantages，Building a domestic circulation as the main body、The new development pattern of mutual promotion of domestic and international dual cycles has pointed out a new direction for the formation of new momentum for China's bet365 champions league。

　　The role of bet365 champions league circulation continues to increase

More than 40 years since reform and opening up，The international cycle provides huge momentum for China’s bet365 champions league，Played an important role in different stages of reform and opening up。During 1978-2000，China uses its comparative advantage in factor costs to implement an export-oriented strategy，Start from the more economically developed areas，Gradually expand to the whole country，Through the development of processing trade、Participate in the international cycle by introducing foreign investment and other methods，The regional economy has grown rapidly。From China’s accession to the WTO in 2001 to the global financial crisis in 2008，Different regions in the country are deeply integrated into the global economic system by fully participating in the division of labor in the global value chain with trade in intermediate goods as the core，Participating in the international cycle has also supported China’s regional economy to enter the fastest growing cycle since the reform and opening up。After 2008，Affected by the negative impact of the global financial crisis and the transition of China’s economic development stage，The role of the international cycle in promoting bet365 champions league has gradually declined from the peak in the previous stage。At the same time，With the continuous improvement of China’s economic development level，Innovating in science and technology、New competitive advantages formed in areas such as market size have made the role of domestic circulation in bet365 champions league continue to increase，The trend of anti-globalization has intensified in recent years、Changes in the external environment such as the rise of trade protectionism have further accelerated this process。

　　The international cycle faces a bet365 champions league situation

Current，China’s bet365 champions league driven by the international cycle is facing increasingly stringent constraints。

First, resource constraints continue to tighten。Long time，Abundant cheap labor is an important source of factor cost advantage for China in participating in the international cycle，But in recent years，The labor cost advantage is declining。In 2019, the proportion of bet365 champions league population aged 60 and above in the total population has reached 18.1%，The aging of the population continues to deepen，Labor supply has passed the "Lewis turning point"，The labor cost advantage is constantly being lost。

Second, environmental constraints are increasingly strengthened。International industrial transfer with foreign direct investment as the core is China’s participation in the international cycle、Important driving force driving domestic bet365 champions league。Existing research shows，The lower intensity of environmental regulations in developing countries participating in the international division of labor will lead to the "pollution haven effect"，Reflected by the transfer of heavily polluting industries to developing countries。But in the context of green development，China has formulated more stringent environmental regulatory standards for international industrial transfer，At the expense of the ecological environment、The practice of attracting foreign direct investment indiscriminately to drive bet365 champions league has become a thing of the past。

Third, the importance of economic security constraints is becoming increasingly prominent。As a developing and emerging power，China’s long-term export-oriented strategy of over-reliance on the international cycle is very easy to cause trade friction，This also makes my country’s development external environment face new changes。What’s more important，Because developing countries are often prone to fall into the trap of "low-end lock-in" when participating in the international division of labor，By imitation、Technology spillover and other means have been unable to effectively narrow the gap in primary innovation capabilities between China and developed countries，It is even more difficult to solve the "stuck" key technical problems that China's development urgently needs。Especially since the Sino-US trade friction，The United States "cuts off supply" to China in key technology fields such as chips，And the unique resilience of China’s economic growth since the outbreak of COVID-19，It makes us deeply realize that in the cruel international competition, we only rely on the external demand and technology of the international cycle，It is impossible to solve the problem of sustainability of China’s bet365 champions league、Severe challenges encountered in quality and other aspects，More difficult to ensure economic security。

　　Convert bet365 champions league momentum

It can be said，The stricter constraints faced by China’s economic development make the limitations of the international cycle in promoting China’s bet365 champions league more and more obvious，Optimizing new driving forces for bet365 champions league is the general trend。In the process of kinetic energy conversion driven by the switch from the international macrocycle to the domestic macrocycle，Need to be wary of new problems emerging in China’s bet365 champions league。

First, the problem of smooth conversion of bet365 champions league momentum in many export-oriented regions。China’s overall foreign trade dependence in 2019 is approximately 32%，Shanghai、Beijing、Guangdong、Tianjin、Zhejiang, Jiangsu and other developed regions in eastern China have a foreign trade dependence rate of over 40%；Dongguan、Suzhou、Shenzhen、The foreign trade dependence of cities such as Xiamen still exceeds 80%。How to smoothly transition to a new stage dominated by the domestic cycle，Is an important issue facing China’s regional economic development。Especially in the face of the two-way squeeze of "high-end return flow" from developed countries and "mid-low-end diversion" from developing countries，Weakened external demand、After the return of capital leads to the weakening of the momentum of the international cycle，Cultivation of new driving forces dominated by the domestic macrocycle is to maintain the stable development of the regional economy、Important prerequisite for mitigating regional economic operation risks。

Second, the imbalance of bet365 champions league in China under the new dual-cycle development pattern is complex and diverse。Under the new development pattern，Scale factors play an increasingly important role in determining bet365 champions league，Population among regions、The competition for industry and other existing resources will become more intense，High-quality resources and factors will further gather in a few developed areas，The "circular cumulative causal effect" on this basis will lead to the risk of widening regional disparities。First，China’s regional economy will present an overall pattern of coexistence of east-west gaps and north-south gaps。Except for the existing differences，Due to the natural geographical conditions in the north、Disadvantages in business environment and economic scale，The new development pattern will accelerate the southward shift of China’s economic center of gravity，The gap between north and south will further widen，such as Northeast、Tianjin、Shandong and other northern regions that are in a critical period of transformation of economic growth momentum will face greater pressure。Secondly，The gap between cities will replace the gap between urban and rural areas as the main problem。The urbanization rate of China’s permanent population reached 60% in 2019.6%，has entered the middle and late stages of urbanization，The gap between urban and rural areas caused by the dual structure of urban and rural areas in the early stage of urbanization is narrowing。But the dividends from the transfer of rural surplus labor gradually disappeared，The momentum of urbanization driven by the transfer of urban and rural labor force has weakened，The requirement to smooth the domestic circulation under the new development pattern will increase the momentum of urbanization driven by inter-city population flow。The spatial reallocation of the existing population will lead to the coexistence of urban shrinkage and expansion in China’s urban system，Intensify the regional gap between urban agglomerations and non-urban agglomerations, as well as central cities and edge cities within urban agglomerations，Regional disparities will also take more diverse forms。

　　Based on the advantage of large bet365 champions league scale

The key to reshaping China’s bet365 champions league momentum under the new development pattern is to base on the super large market scale and technological innovation advantages formed in the domestic cycle，Provide new kinetic energy support for bet365 champions league from the supply side and demand side，Thus forming a high-level dynamic equilibrium in which domestic and international dual cycles promote each other。

First，China must make full use of its large market size to drive supply-side structural reform。First, use one’s own multiple levels、Optimizing the domestic industrial chain and value chain in the ultra-large domestic market，Deepening the domestic regional division of labor system，Through the domestic industrial chain、The spatial reorganization of the value chain improves the stability and competitiveness of the industrial chain，Promote coordinated regional development。The second is to leverage the huge market scale to invest in innovation、The increasing returns to scale effect of achievement transformation and application，Inspiring cutting-edge technology innovation，Promote regional economic innovation-driven development。The third is to give full play to the advantages of diversified market demands of online and offline integrated development，Taking advantage of new consumption formats、New model promotes rapid iteration of product and technology supply，Form more breakthrough points for bet365 champions league。

Secondly，China should actively use its advantages in technological innovation to expand domestic market demand。First, we must give full play to our capabilities in big data、Cloud computing、Artificial Intelligence、The advantages of technological innovation in many fields of the new round of technological revolution such as the Internet of Things，Building a new consumption ecosystem，Achieve accurate matching of supply and demand，Explore domestic market potential，Increase the contribution of domestic demand in bet365 champions league。The second is to use new technologies to build urban-rural integration、Nationally linked high-standard domestic unified market，Accelerate the construction of new infrastructure，Reduce inter-regional transaction costs，Accelerate the process of domestic market integration，Expand the depth and breadth of the domestic market。

Finally，The most important institutional guarantee for reshaping new drivers of China’s bet365 champions league from both supply and demand sides is the special institutional advantage of the socialist system with Chinese characteristics，Smoothen the blocking points and obstructions in the dual cycle through the implementation of proactive regional economic policies and institutional innovation，Achieve smooth conversion of bet365 champions league momentum。

　(Author’s affiliation: Institute of Modern bet365 champions league Management, Tianjin University of Finance and Economics)