Study On Spatial Spillover Effects Of Transportation Infrustructure In Yangtze River Economic Zone

Based on the importance of Yangtze River Economic Zone to the coordinated development of China's regions and the spillover effect of the transport infrastructure on the regional economy,this paper studies the influence of the Yangtze River Economic Belt on the transportation infrastructure,the spillover effect and the economic growth The relationship between the theoretical analysis and empirical research.In the aspect of theory,we use the related theories of microeconomics,macroeconomics,regional economics,urban economics and space economics separately,summarize and analyze some related literatures at the early stage,clarify the research context,the development of theory and the model structure.The empirical aspects:On the one hand,the selection of variable indicators combines the relevant factors of neoclassical economic theory,endogenous economic growth theory and new economic geography theory,and also uses the exploratory spatial analysis method(ESDA)to verify the regional economy On the other hand,this paper,from a spatial perspective,considers the impact of multi-dimensional elements on regional economic growth and builds a basic transportation infrastructure Facilities spatial spillover model of regional economic growth and empirical analysis of panel data and spatial econometrics research methods from 2003 to 2015 in various provinces and cities in the Yangtze River Economic Zone.The results show that the neoclassical factors,the increased growth factors and the new economic and geographical factors that affect the economic growth have different degrees of promotion for the economic development of the Yangtze River Economic Zone.The economic development level of the provinces and municipalities in the Yangtze River Economic Zone is not a random distribution of spatial patterns But shows a significant spatial aggregation feature.After long-term development,this spatial aggregation feature has formed a relatively stable“differentiated space block cluster”in this area.In addition,while the infrastructure of highways,railways and waterways respectively have positive effects on the overall economic development of the Yangtze River Economic Zone to varying degrees,the output elasticity are respectively 0.055?0.047 and 0.031;there is also mainly the negative spillover effect of widening the development gap between regions,the output elasticity are respectively-0.018 ?-0.029 and-0.043.Therefore,the government should further increase the investment and construction of transport infrastructure in all provinces and cities in the Yangtze River Economic Zone(especially in the upper and middle reaches of provinces and municipalities),formulate a reasonable transportation infrastructure layout plan,optimize the network structure of transportation infrastructure and promote The Yangtze River Economic Zone integrated transport infrastructure development,but also need to improve the construction and development of comprehensive supporting facilities.