Research On The Impact Of Traffic Infrastructure Construction On Industrial Agglomeration Under Government Competition

Industrial agglomeration is an important spatial pattern of industrial organization,which is represented by the geographical concentration of factors and economic activities.The study of new economic geography shows that transportation costs and economies of scale have become the main factors for the development of agglomeration.Therefore,the construction of transportation infrastructure can promote the spatial agglomeration of factors and economic activities by reducing transportation costs.As a bridge connecting the regions,the improvement of the transportation infrastructure network affects the spatial pattern between the regions,and has a close relationship with our residential distribution,enterprise layout,and industrial agglomeration.In recent years,China's investment in transportation infrastructure has been increasing,optimizing the local investment environment by providing better transportation infrastructure and better travel conditions.At the same time,it has also mitigated the negative impact of excessive agglomeration.Therefore,it is of great significance to study the mechanism of transportation infrastructure for industrial agglomeration or diffusion to rationally optimize the distribution of transportation infrastructure and scientific regulation of industrial layout.However,the influence of transportation infrastructure on the spatial distribution of economic activities has different perspectives in the theoretical circle.Some studies believe that the improvement of transportation infrastructure has reduced transportation costs and promoted agglomeration;some literatures believe that the construction of transportation infrastructure will promote the decentralization of factors;and some scholars believe that transportation infrastructure as a factor input,obeying the law of diminishing marginal utility,Therefore,the construction of transportation infrastructure has an "inverted U-shaped" trend for the promotion of economic agglomeration.That is,the construction of transportation infrastructure can promote the geographical concentration of factors and production first.With the continuous construction of transportation infrastructure,it will inhibit the accumulation.By combing the existing literature,this paper believes that:First,The transportation infrastructure construction and industrial agglomeration in the Yangtze River Delta region are highly correlated in space.The degree of industrial agglomeration in areas with relatively high degree of transportation infrastructure construction is also relatively high,confirming the promotion of transportation infrastructure construction for industrial agglomeration.Second,the network characteristics of the transportation infrastructure make the regions integrated into one,accelerating the inter-regional flow of factors.The construction of transportation infrastructure in the region not only affects the economic activities of the region,but also promotes the inflow or outflow of elements in the surrounding areas through the connection of transportation infrastructure,thus creating a spatial spillover effect.New economic geography believes that industrial agglomeration or dispersion depends on the balance between regional "central force"and "centrifugal force",and the uneven distribution of regional transportation infrastructure network will balance the "central force" and "centrifugal force".Influence,which affects the economic activities of each region.Third,the spatial spillover effect is not only the flow of factors and the resulting economic activities,but also the construction of transportation infrastructure has the effect of "space overflow".Locally,because it provides a better transportation infrastructure for enterprises,it reduces the transportation costs of local companies'products and personnel,thus enhancing the attractiveness of the region to enterprises and factors.In order to enhance their attractiveness to enterprises and factors,the surrounding areas will also increase the supply of transportation infrastructure.The promotion mechanism of the existing local government officials in China has resulted in obvious regional competition in the construction of transportation infrastructure between regions,which has resulted in the overflow of transportation infrastructure construction.Through empirical research,this paper confirms the above conclusions:Firstly,through the Moran index test,it is found that there is a significant spatial positive correlation between the transportation infrastructure construction of the first-level government in China,which supports the competition of intergovernmental transportation infrastructure construction in this paper.Hypothesis;Secondly,inter-regional industrial agglomeration also exhibits a highly positive spatial correlation in space,confirming that the elements have a high spatial spillover effect through production linkages;at the same time,based on the above two points,the Yangtze River Delta is also verified.There is a certain correlation between regional transportation infrastructure and industrial agglomeration.Finally,this paper uses the partial differential decomposition method of spatial Dubin model(SDM)to explore the spatial spillover effect of traffic infrastructure on factor flow.Finally,based on the empirical analysis of the Yangtze River Delta region,this paper proposes corresponding policy recommendations,pointing out that all localities should fully consider the spatial spillover effects of transportation infrastructure and horizontal competition among regional governments,and rationally plan the transportation infrastructure network from the perspective of overall regional development.To promote the development of the local economy.