“一带一路”沿线省份基础设施投资与全要素生产率研究

Infrastructure Investment and Total Factor Productivity of Provinces along the Belt and Road

基于Cobb-Douglas生产函数,构建基础设施对全要素生产率影响的理论模型,利用"一带一路"沿线15个省市区2001—2015年的面板数据检验基础设施对全要素生产率的直接与间接效应。结果显示:基础设施投资并不能直接促进全要素生产率的提高,经济基础设施规模的扩大抑制全要素生产率的提高;不同类型的基础设施有着不同的间接溢出效应,信息、城市基础设施促进全要素生产率的提高,但交通、能源基础设施的促进作用并不显著。

Building a Theoretical Model of Total Factor Productivity for Infrastructure Based on Cobb-Douglas Production Function.Using the 2001-2015 panel data of 15 provinces along the Belt and Road to test the direct and indirect effects of infrastructure.The results show:Infrastructure investment does not directly promote the improvement of total factor productivity. Instead, it increases the scale of economic infrastructure and inhibits the growth of total factor productivity; different types of infrastructure have different indirect spillover effects; information and urban infrastructure promote the improvement of total factor productivity, but the transportation and energy infrastructures have not obvious promotion effect.