Does Transport Infrastructure Promote Regional Innovation:Explanation Based on Heterogeneous Economic Distance
Based on careful consideration of the multi-dimensional factors that regional innovation relies on,this paper brings regional transportation facilities and economic distance into the vertical innovation theory,and explores the impact of transportation infrastructure on regional innovation.The study employs panel data for 29 provincial units in China from 1993 to 2020 to show the following.(1)The increase in the density of classified highways significantly improves the level of innovation in each region and plays a greater role in promoting the growth of regions close to the economic frontier;the result remains stable after addressing issues of potential endogeneity.(2)The entry and exit of enterprises as the result of competition play an intermediary role in the process of innovation in the regions affected by the density of classified highways,the effect of entry being stronger.(3)The intermediary effect of entry and exit plays a greater role in areas close to the economic frontier.In the current context of high-quality economic growth,this conclusion offers insight on how to promote long-term economic growth for economies at different distances from the economic frontier.
economic distancedensity of classified highwaysregional innovationentry and exit