Research On The Influence Mechanism Of High-speed Transportation Infrastructure On Regional Total Factor Productivity

With the continuous integration of the global economy and the rapid development of China’s economy,the development of high-speed transportation infrastructure has been strongly supported by the economy.In order to explore the impact and mechanism of high-speed transportation infrastructure on the economy,this paper takes total factor productivity,a key indicator for evaluating economic growth efficiency,as the starting point,in order to explore the influence mechanism of high-speed transportation infrastructure on regional total factor productivity.Based on input-output theory,economic growth theory and total factor production theory,this paper uses the DEA-Malmquist method to measure the total factor productivity of 30 provinces in China(except Tibet,Hong Kong,Macao and Taiwan)from 2000 to 2022.At the same time,considering the influence of spatial factors,this study incorporates the spatial lag term into the econometric model,and uses the spatial Dubin model based on the 0-1 spatial weight matrix and the inverse distance spatial matrix to analyze the impact of spatial spillover effects between regions of various high-speed transportation infrastructure on total factor productivity.These research methods and analysis results can provide useful references for regional development policy formulation and high-speed transportation infrastructure planning.Through theoretical and empirical analysis,the following conclusions are drawn: high-speed transportation infrastructure can promote the growth of regional total factor productivity.Specifically,the growth of expressway on regional total factor productivity is mainly achieved through the total effect,that is,the increase of expressway infrastructure can promote the total factor productivity of the region and other regions.However,high-speed railway and aviation infrastructure mainly affect the total factor productivity of other regions through indirect effects,which indicates that the promotion effect of high-speed railway and aviation infrastructure in this region on the total factor productivity of other regions is realized through spatial spillover effect.