作　者：郭鹏飞 胡歆韵
关键词：基础设施投入；市场一体化；区域经济增长；中介效应
摘　要：

在“双循环”的新发展格局下，将基础设施投入、市场一体化和区域经济增长纳入一个统一的框架，运用永续盘存法非传统途径和“价格法”，分别测算1993-2017年省际基础设施资本存量和国内市场分割指数，并采用中介效应分析方法，检验市场一体化在基础设施投入影响区域经济增长中的传导作用，可发现：基础设施投入和国内市场分割指数在样本期间的时间变化趋势基本相反；市场一体化对基础设施投入促进区域经济增长的中介效应不仅显著，而且具有异质性；其对网络基础设施投入影响区域经济增长的中介作用更为明显，同时在东部地区的中介作用更加突出；就不同市场类型而言，商品市场一体化对于发挥基础设施的经济增长效应具有更为重要的意义。据此，政府应加大5G 基站与城际高速铁路等网络基础设施建设，积极引导各功能分区发挥自身比较优势，保障各类市场主体平等进入市场，加快农民市民化步伐。

 

Infrastructure Investment, Market Integration and Regional Economic Growth

Guo Pengfei，Hu Xinyun（Chongqing Technology and Business University）

 

Abstract Under the new developmental pattern of "Dual Circulation", this paper integrates infrastructure investment, market integration and regional economic growth into a unified framework, calculates the provincial infrastructure capital stock and domestic market segmentation index from 1993 to 2017 by using the non-traditional way of perpetual inventory method and price method, and further empirically tests the mediating role of market integration in the relationship between infrastructure investment and regional economic growth by using the mediating effect model. The study found that the time variation trends of infrastructure capital investment and domestic market segmentation index were basically opposite during the sample period. The positive impact of infrastructure capital investment on regional economic growth was significantly mediated by the market integration, and such mediating effect was heterogeneous. Specifically, the mediating role of market integration in the relationship between network infrastructure investment and regional economic growth was more obvious, and such effect in the relationship between infrastructure investment and regional economic growth was more prominent in the eastern region. In terms of different market types, the integration of commodity market was more significance for exerting the economic growth effect of infrastructure. Accordingly, relevant countermeasures and suggestions are put forward from four aspects as follows: increasing the construction of network infrastructure such as 5G base station and intercity high-speed railway, actively guiding each functional region to give full play to its own comparative advantages, guaranteeing all kinds of market subjects to enter the market equally, and speeding up the progress of peasants' citizenization.

Key words   infrastructure investment; market integration; regional economic growth; mediating effect

 

■  作者简介 郭鹏飞，经济学博士，重庆工商大学长江上游经济研究中心讲师；重庆 400067； 胡歆韵，重庆工商大学长江上游经济研究中心博士研究生。

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