Study On The Impact Of Urban Agglomeration On Urban Economic Growth In The Middle Reaches Of The Yangtze River

The spatial changes in economic activity are manifested as agglomeration or dispersion,and changes in economic activity in time are manifested as growth or decline.Agglomeration and growth are the most significant features of economic development in the process of time and space evolution.They are closely linked and mutually promotional and influencing.However,for a long time,the economics community has separated the study of agglomeration from economic growth,and there is no systematic theory.The study of agglomeration lacks the background of economic growth and appears to be thin.the lack of agglomeration emergence of the new economic geography,only to break the two long independent analysis of the state,agglomeration and economic growth began to be included in the same analysis framework and system.After that,many scholars began to study the relationship between agglomeration and economic growth from a theoretical and empirical point of view.The vast majority of the research results show that there is a positive correlation between agglomeration and economic growth,that is,agglomeration can promote Economic Growth.The city is a spatial and carrier of population and economic activity,and urban agglomeration is the highest from of all agglomeration types.Because of urban agglomeration includes population agglomeration,factor agglomeration,industrial agglomeration,and so on.When the urban agglomeration occurs,what mechanism is in the promotion of urban economic development or regional economic growth.Through combing the relevant literature and theory,this paper clarifies the connection between urbanization.Urban agglomeration and economic growth,and tries to derive the path of urban agglomeration to promote economic growth from two aspects of market mechanism and non-market mechanism.The market mechanism mainly refers to the urban agglomeration through the scope of economy and economies of scale to achieve increasing returns,while non-market mechanism is mainly refers to the urban agglomeration through the knowledge spillover effect and consumption preference spillover effect to achieve the increase in remuneration.Under the combined action of the two,urban agglomeration can promote economic growth.The urban agglomeration of the middle reaches of the Yangtze River is a cross-regional state-level urban agglomeration approved by the State Council in 2015.As an important support for the strategy of the rise of the central region,the state has clearly defined its strategic position as the new growth pole of China's economy.However,through the description of the development of the status : Compared with the Yangtze River Delta,Pearl River Delta and Beijing-Tianjin-Hebei urban agglomeration,the urban agglomeration level and the economic development level of the urban agglomeration in the middle reaches of the Yangtze River are relatively low.In the empirical study,the labor productivity and employment density were used as the agent variables of economic growth and urban agglomeration respectively.The empirical results showed that the urban agglomeration in the middle reaches of the Yangtze River could promote the urban agglomeration Economic growth,but the overall level of agglomeration is not high.And the promotion of economic growth is not obvious.