One, one, one, the "centre-outside" theory is also known as the "core-outside" theory. Marginalism is the sum of the theoretical ideas developed by development economics in the 1960s and 1970s in terms of unequal economic relations between developed and underdeveloped countries. A number of scholars have used the twin concepts of “centres” and “margins” to analyse the economic and trade patterns of the world's developed and underdeveloped countries and to propose policy ideas to address their unequal relations. The development and content of the “centre-outside” doctrine the outer edge of the prewish centre describes the confrontation between western capitalist countries and developing countries in the international trading system at that time. Friedman introduced this theoretical model into the field of regional economics. Krugman constructed a two-region model using the cobb-dogras function by improving the dixit-stiglitz monopolistic competition model. There are two types of products in the model: agricultural products, which are produced in the non-remunerated agricultural sector, and manufactured goods, which are produced in an incrementally paid industrial sector distributed in two regions. The economies of the two regions will eventually be home to industrialization-centric regions and agrochemical regions to peripheral-outside structures; centres-outside formation will depend on transport costs, economies of scale and the share of manufacturing in national income; and the emergence of trade is not entirely due to the existence of comparative advantages, and more so to increased remuneration from economies of scale. The relationship between the “centre-outside” theory and the regional economy the centre of contours' concepts and analytical methods have been introduced into the study of the regional economy, incorporating a clear concept of space relations and forming the centre-peripherical theory of the relationship between economic development and spatial patterns between the regions. The developed regions, which are characterized as “centres” for relatively rapid economic development, such as capital, information, labour, etc., are the first regions to develop between regions for a number of reasons; other regions are “outsides” for slow development. There is an unequal development relationship between the centre and the periphery. In general, the centre dominates, while the periphery depends on it for development. The reasons why the centre has a dominant influence on the periphery the trade inequality between the centre and the periphery, and the economic power factor are concentrated at the centre. Technological advances, efficient production activities and innovation in production are also concentrated at the centre, which relies on these advantages to obtain residual value from the periphery. For the periphery, the centre exerts pressure and depression on their development, and the process of spontaneous development of the periphery is often difficult. The promotion of economic and trade policies in favour of the centre has reinforced the trend towards capital, population and labour mobility at the periphery. There is a potential demand for innovation at the centre, allowing innovation to flourish at the centre. Innovations have enhanced the development capacity and vitality of the centre and its dominance in spreading to the periphery. The six main effects of growth sustained by the centre - the dominant effect - the net transfer of natural, human and capital resources from the periphery to the centre. Information effects - the convergence of information within centres increases the value of real and potential economic activities in the process of dissemination and feedback. Psychiatry effects - success of innovation stimulates more innovation. Modernization effects - transformation of social values and behaviours that take place at the centre to adapt to innovation. Connectivity effects - an innovation gives rise to new innovation trends. Productive effects - providing attractive structural support for innovation, including growth in economic size and specialization. For example, zhengzhou vs opened the capital of zhengzhou, henan province, located in the hinterland of china, and in kyushu, china's capital, china's urban areas and the thirteenth largest urban area. The total area of the city is 7446. 2 square kilometres, with a population of 8. 6265 million. It is china's historic and cultural city, one of china's eight great ancients, china's fine tourist cities, the country's garden city, the country's sanitary city, china's original chinese ancestor, the capital of china, the capital of china and china, and the political, economic, educational, scientific and cultural centre of the province of henan. Important central cities and national integrated transport hubs in central china. Opened — anciently known as tokyo (also known as zhuang liang and zhongkyung) and abbreviatedly located in the eastern part of henan province and at the centre of the sundong great plain on the chinese map. The opening of the embargo is one of the seven ancient cities of china, one of china's top tourist cities, one of china's two model cities, one of the country's most advanced cities for the creation of civilized cities, and one of the three central cities of henan province's middle-city urban cluster and the yellow “three-point-one” gold tourism route. The open districts are the five counties and the drumhouses, the rontin district, the qingdai district, the hsu river return district, and the kiming district. 1. Central urban characteristics 1. Massiveness of the city, 2. Economic strength, 4. Scientific and technological strength. The construction of urban and industrial systems throughout the province will be centred on zhengzhou, with a “heart-to-heart” layout that will enhance radiation-enabled capabilities and create a half-hour, one-hour urban circle centred on zhengzhou. As a regional centre city, zhengzhou faces serious challenges in improving its competitiveness owing to its small size and low radiation capacity. Therefore, the establishment of the metropolitan circle of zhengzhou as an entry point for zheng zheng zheng zheng zheng zheng, will play a significant role in upgrading the city in central zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zhu has played a great role in promoting economic development. In the functional positioning of china's urban cluster, zhengzhou, as the central district, is located in the capital of henan province, the major regional centres throughout the country, the central cities of china, the major modern logistics centres throughout the country and the regional financial centres, the modern service centres, the modern manufacturing centres and the innovation centres. The central urban development advantage of zhengzhou is the provincial capital of henan, the most accessible and well-developed city in the central region, and the political, economic and cultural centre of henan province. In terms of location, zhengzhou has a very favourable position in the city, with the middle ground in the north and east. Zhengzhou has become an area where henan's large logistics enterprise has gathered, and the resources and information advantages of zhengzhou, which has established a nationwide information and trading network, have gradually been established. The only city in the centre with a national commodity exchange. China has three commodity futures exchanges, one of which is in zhengzhou. The development of futures markets will lead to the development of financial and capital markets, which will strengthen zhengzhou’s position as an important financial centre in central china. Zhengzhou also has the basic conditions for becoming a modern service centre, with the service sector being the most dominant of the chinese urban population. Zhengzhou has problems as a central city. Zhengzhou, in its own right, is one of the largest cities in the country, with small size, low levels of urbanization, low levels of radiation capacity and, above all, low levels of economic performance. Zhengzhou has not yet taken a strong lead in the province and the region, has not dominated the henan economy, and does not represent the direction of henan industry. The role of nodes in the country’s economic cycle is not clear, and the radiation-driven effects on the surrounding cities and regions are quite limited, making it difficult for zhengzhou to show strong radiation over a relatively short period of time, making it very slow to pull on the local economy. Zhengzhou integrated urban competitiveness ranked 50th out of 50 cities listed in the china urban competitiveness report. With 10 indicators of combined productivity, integrated economic growth, integrated employment growth and integrated environmental resource costs, as a city with a larger population than the economic base, zhengzhou faces serious challenges in improving urban competitiveness. 6. The opening of the building is the development advantage of the outlying cities: it is located in the eastern part of zhengzhou and is an important city in henan, where transport is accessible and has a distinct location advantage. The main artery of the railways crosses the sea, and the nine main railways of kyoto and kyoto are bordering. The highways open in broad, liangho, and in japan, 301, 106 roads are interwoven, making them one of the few traffic hubs and highways in the country. Agricultural advantages: the closure of agricultural resources, a better industrial base and the natural advantages of developing agricultural production are the national production base for milk goats, small wool and fresh water fish. Each of the five counties in the city is a national food production base, an important production area for henan wheat, cotton, peanuts and pickles. Tourism advantages: the opening was one of china's eight great ancients and the first historic and cultural cities of the country, published by the state council in 1982. The ancient city has a long history, is rich and rich, has a great heritage, and is unique to the northern city of water。the wealth of tourist attractions is culturally diverse, not only creating direct economic gains, but also increasing the visibility of the openings and attracting a wide range of tourists from the middle to the outside world to visit, enjoy and take vacations. Zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zhu zheng zheng zhong zheng zheng zhu zheng zhu zheng zhu zhong zheng zhu zhong zheng zhong zheng zhu zhong zheng zhu zhong zhong zheng zhu zheng zheng zhu zhong zheng zhu zhong zhu zheng zhu zhang zhong zhu zhu zhu zhu zhu zhu zhu zheng zhu, zhu zhong zhu zhu zhu zhu zhong zhu zheng zhu zhu zhu, zhu zheng zhong zhu zhu zhong zhu zhu zhu zhu zhu zhu zhu z (a) the trend towards integration and its role in the construction of regional centres and the development of regional economies. 2. To facilitate the regionalization of urban patterns. Zhengzhou has a particularly strong traffic advantage, with zhengzhou, the opening, and luoyang along the sea, among other things, forming a belted industrial economic zone along the main traffic routes. Zhengzhou and zhengzhou, along the lines of zheng zhengxiang road, lianjo highway and new state road 310, are the axes of urban growth as the growth poles of regional economic development, dominated by the central city zhengzhou, with the aim of achieving “point-axis development” and radiation and driving the economic development of other cities within the middle and former urban communities, leading to the economic integration of the middle and former urban communities. 3. To facilitate the restructuring and upgrading of the industrial structure of zhengzhou, to move out of traditional labour-intensive industries, to free up space for the development of high-technology industries and modern tertiary industries, and to upgrade the radiation levels of the core regions of zhengzhou. 4. Can effectively alleviate the acute land shortage facing zhengzhou as the core urban growth pole. Zhengzhou, as one of the regional centres in the central region, has the function and function of driving the economy of the surrounding hinterland and the wider region of the central region. Through the construction of 150 square kilometres of eastern zhengzhou, 1. 5 million new districts of zheng dong xing and development zones in the open west, the economic power of zhengzhou metropolitan circle will be realized as soon as possible, in order to strengthen and consolidate zhengzhou’s central position in the chinese urban community and to participate more strongly in the rise of the central region. The economy of zheng zheng zhong zhong zhong zhong zhong zheng was able to improve and fully function. Zheng zheng zheng's integration will, on the one hand, make zhengzhou a truly historic and cultural city; on the other hand, it will expand the size of zhengzhou's urban circle and strengthen the core of zheng zheng's ability to compete for the leading role in the central region. The ultimate goal of zheng zheng zheng's integration is economic integration between zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng and zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zian zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zian zheng zheng zheng zhu ' zhu ' zhu ' zhu the city-to-city interface - accelerating the construction of inter-city traffic between zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng, zheng zheng zheng zheng zheng zheng zheng zheng zian zheng zheng zheng zian zhu zhu zhu zhu zhu zhu, zhu zhu zhu zhu zhu zhu zheng industry interfaces - integrating industrial layouts to accelerate the pace of construction of industrial parks, and to evolve into strong industrial links. Services interface -- spearheading education, science and technology, culture, tourism resource sharing and finance, telecommunications and urbanization, financial, paper-to-city clearing and communications-to-city charges. The ecological interface - strengthening ecological co-establishment, building green corridors on both sides of the main road between the two municipalities, and achieving a full integration of green tourism, has led to the initial formation, at the end of the 11th quinquennium, of a new pattern of integrated development of the two municipalities in which infrastructure is built, industrial complementarities, resource sharing and functional coordination. (2) you company logo
