The Impact of Infrastructure on Total Factor Productivity of Chinese Cities
Based on the panel data of Chinese cities from 2003 to 2017,this paper decomposes TFP from the perspective of economy efficiency and investigates impacts of infrastructure on technical change,technical efficiency and scale economies.The results show that:infrastructure,traditional infrastructure,and digital infrastructure promote technical change and technical efficiency and inhibit scale economies as a whole.After distinguishing flow effect and stock effect,this study finds that both stock effect and flow effect of traditional infrastructure promote technical change and inhibit scale economies.In terms of technical efficiency,flow effect of traditional infrastructure promotes technical efficiency while stock effect is insignificant.Stock effect of digital infrastructure mainly lies in promoting technical change and technical efficiency and inhibiting scale economies;while flow effect significantly promotes scale economies,inhibits technical change and technical efficiency.Interaction effect indicates that stock and flow of different types of infrastructure interact with each other when influencing TFP.Findings of this paper are helpful to provide reference for the government to formulate differentiated infrastructure construction policies to improve TFP.
Traditional InfrastructureDigital InfrastructureTFP DecompositionEconomy EfficiencyStochastic Frontier Analysis