The Impact Of Transportation Investment On Economic Growth

?Athens charter?explicit that city activities include four major activities :living,work,recreation and transportation,and transportation is the link of other activities.Namely,the transportation plays an important role in the process of city development.The input-output models are applied to quantify the effects of investment in transport infrastructure construction on national economy,the Elements of inputs choose the transportion labor,capital and land.This paper also use the entropy theory to analyze the changing trend of mutual promotion and coordinated development between transportation industry investsment and economic growth in the city.The first two chapters are the introduction,which describes the purpose and significance of this paper,summarized the research trends at home and abroad,and introduces the related basic theory.The third chapter is the important chapter of this paper,through the improvement of Cobb Douglas production function,the quantitative analysis model of the labor and capital input factors to the social economic growth is established.Due to the existence of multicollinearity between the selected variables,principal component analysis method is used to eliminate multicollinearity among variables,thus ensuring the scientific quantitative calculation model.Taking Shenzhen city as an example proved the correctness of the established model.The fourth chapter analyzes the trend of mutual promotion and coordinated development between transportation industry and economic growth.Among them,the traffic system input-output entropy is composed by labor input-output entropy and capital input-output entropy,the system input-output entropy describe the change of coordination degree.Finally,the data of Shenzhen city in 2004-2014 were analyzed in this model.The fifth chapter analyzes the influence of the traffic construction land to the economic growth.The supply of land as a basic element of city economic development,the land of transportation has a crucial impact on growth.This chapter focuses on exploring the impact of the land occupied by transportation on growth.The quantitative analysis of the effect of trafficland resources on growth by calculating the "growth drag" of urban transportation land supply to economic growth.The sixth chapter is the concluding part of this paper,calculation results indicate that the Shenzhen municipal transportation industry labor and capital input and output elasticity is lower than the social total output elasticity,return the investment in transportation construction rate is relatively low,while the rate of return will decrease.According to the calculation results,combined with the present situation of transportation development in Shenzhen,Suggest that Shenzhen emphasis on the function of transportation investment and construction,strengthen the development of traffic and the surrounding city comprehensive traffic and increase the quality of capital,improve the level of education,increase the quality of talent introduction,improve land utilization policy recommendations.