Heterogeneous Transportation Network Density,Labor Flow and Total Factor Productivity
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责任编辑:陈诗静
(School of Economics,East China Normal University,Shanghai 200061,China)
Abstract:Literature focuses on the impact of a single type of transportation infrastructure on total factor productivity,but generally ignores the impact of different types and grades of transportation network density on total factor productivity,and the role of labor mobility in the process of influencing total factor productivity. Using panel data of 30 provinces in China from 2000 to 2018,the author investigates the effects of different types and grades of transportation network density on total factor productivity and the impact of labor mobility on total factor productivity. The results show that:(1)the increase of transportation network density of different types and grades has a significant positive effect on total factor productivity,especially on highspeed rail and freeway,and the effect of same type transportation network system decreases with the grade reduction;(2) heterogeneous transportation networks have complementarity, with the increase of transportation network density, complementarity gradually decreases.;and(3)heterogeneous transportation network density improves total factor productivity through the mobility of labor,especially R&D personnel. The effect of labor mobility in different types and grades of transportation networks is obviously different,and the effect decreases with the grade reduction. Therefore,in the future,local governments should vigorously build high-speed railways and expressways,and further strengthen their network density in cities with high-speed railways and expressways. At the same time,the local government should focus on the role of R&D personnel mobility in the process of improving TFP,formulate talent incentive and preferential policies,improve welfare benefits and research funds,attract R&D personnel inflow,promote the reform of household registration system,cancel or relax the restrictions on talent settlement,and comprehensively solve the problem of talent household registration.
Key words:high-speed rail;express way;R&D personnel flow;labor flow;total factor productivity