An Analysis Of The City Economic Agglomeration Effect In The Silk Road Economic Belt Of Gansu Section

With the accelerated development of urbanization and regional economic integration,the interaction between cities gradually strengthens,urban economic agglomeration plays more and more significant role in increasing urban and regional productivity. As a major strategy to achieve regional economic integration,the construction of the Silk Road Economic Belt has not only strengthen the economic interaction of west areas,but also provides a new opportunity for promoting the urban economic agglomeration and the regional coordinate development of Gansu province.Therefore,it has important significance in promoting regional coordinate development,to reveal current situation of regional economic clusters and its driving forces.Based on the analysis and summary of the previous literatures and interrelated theory,this paper firstly explores the characteristics of urban economic agglomeration of 12 cities and 2 Autonomous Prefectures in Gansu province from the perspective of externality. By using the social network analysis tools,this paper analyzes the network features of structure of the urban economic agglomeration,and divides cities into core part and edge part according to the core-periphery model.In section 4,an econometric model is set up to explore the influences of externality on urban economic agglomeration in the Gansu Sectionof Silk road Economic Belt,the main conclusions are as follows.Firstly,this paper selects ratio of the secondary and tertiary industry to GDP and market potential as the proxy variables of pecuniary externality,urban employment density and human capital as the proxy variables of technical externality,fixed assets investment and government expenditures as the proxy variables of communication externality,these variables promote urban economic agglomeration in Gansu city,transport infrastructure construction as the proxy variable of Congestion externality has negative effect on urban economic agglomeration.Secondly,ratio of the secondary and tertiary industry to GDP,market potential,urban employment density have distinctively Positive effects on urban economic agglomeration of core and edge cities.Lately,human capital has Positive effects on core cities’ economic agglomeration,fixed assets investment and government expenditures have Positive effects on edge cities’ economic agglomeration,transport infrastructure construction has negative effect on edge cities’ economic agglomeration.In the end, some policies and suggestions are provided for future urban economic agglomeration development and regional coordinate development.Based on the conclusions of the study, this article has raised policies and recommendations to promote the urban economic agglomeration and regional coordinate development of Gansu Province.As follows:First,build a new pattern of the accumulative development of urban economyin the silk road economic belt in Gansu area;Second,optimization and upgrading the industrial structure of the Silk Road economic belt in Gansu area;Third, build the city’s financial investment platform of the Silk Road economic belt in Gansu;Fourth,strengthening urban human resources development in Gansu section of the Silk Road economic belt;Fifth, take measures to promote the coordinated economic development of the silk road economic belt in Gansu area.