新型基础设施投资对区域经济差距的影响

The Impact of Investment in New Infrastructure on Regional Economic Gaps

从新型基础设施角度出发采用动态面板的研究方法,以中国2003—2020年30个省份为样本,探讨新型基础设施投资对区域经济差距的影响。研究结果表明:新型基础设施投资与区域经济差距呈倒“U”型关系,这一结果经过一系列的稳健性检验后仍然成立;进一步分析表明,新型基础设施投资会缩小东部地区经济差距,但是会扩大中部、西部地区经济差距;将新型基础设施分为融合基础设施、信息基础设施、创新基础设施后,发现融合基础设施对于区域经济差距的扩大效应弱于信息基础设施、创新基础设施;新型基础设施投资会通过劳动效率、技术创新渠道影响区域经济差距。

Starting from the perspective of new infrastructure,a dynamic panel research method is used to explore the impact of new infrastructure investment on regional economic gaps using a sample of 30 provinces in China from 2003 to 2020,and the results of the study show that:New infrastructure has an inverted"U"-shaped relationship with regional economic gaps,which still holds after a series of robustness checks;New infrastructure will reduce the economic gap in the eastern region,but will expand the economic gap in the central and western regions;After dividing new infrastructure into integrated infrastructure,informational infrastructure,and innovative in-frastructure,it is found that integrated infrastructure has a weaker effect on the expansion of the regional economic gap than informational infrastructure and innovative infrastructure.Infrastructure will affect the regional economic gap through the channels of labor efficiency and technological innovation.