摘要
数字经济是重组要素资源、重塑经济结构、重构区域格局的重要力量,在促进区域协调发展中发挥着重要支撑作用。本文以2012—2023年我国284个地级市为研究对象,采用双重差分法实证考察数字经济对区域经济差距的影响效应及机制。研究表明,数字经济发展能够显著降低城市内经济差距。异质性分析表明,与北方城市和五大城市群相比,数字经济对区域经济差距的抑制作用在南方地区城市及相对较小规模城市群中更为明显。机制分析表明,数字经济能够促进城市内的多中心发展、增强城市间的交流合作,以及提高城市群的多中心性,进而形成有利于缩小区域经济差距的多中心空间结构。此外,数字经济不仅降低了城市群中城市内经济差距,同时降低了城市间的经济差距。本文在城市视角下揭示数字经济促进区域协调发展的作用及机制,为我国构建优势互补的区域经济布局提供实证参考。
The digital economy is becoming a key force in reorganizing factor resources,reshaping economic structures,and reconstructing regional patterns,playing an important supporting role in promoting coordinated regional development.With a sample of 284 prefecture-level cities in China from 2012 to 2023,this study empirically assesses the impact of the digital economy on regional economic inequality and its mechanism using the difference-in-differences method.The results show that the digital economy can significantly reduce regional economic inequality.Heterogeneity analysis indicates that compared to northern cities and the five major urban agglomerations,the suppressive effect of the digital economy on regional economic inequality is more pronounced in southern cities and relatively smaller urban agglomerations.Mechanism analysis shows that the digital economy can facilitate polycentric development within cities,promote communication and cooperation between cities,and improve the polycentricity of urban agglomerations,thereby forming a polycentric spatial structure that is conducive to narrowing regional economic inequality.Furthermore,the development of the digital economy not only narrows the economic inequality within cities in urban agglomerations but also reduces the economic inequality between cities.This study helps to reveal the impact of digital economy on promoting regional coordinated development,and provides empirical reference for China to form a regional economic layout of complementary advantages.
作者
郭立祥
岳书敬
Guo Lixiang;Yue Shujing
出处
《统计研究》
北大核心
2025年第11期47-59,共13页
Statistical Research
基金
国家社会科学基金一般项目“数据要素视角下区域协调发展的新机制与新路径研究”(21BJL056)。
关键词
数字经济
多中心空间结构
区域经济差距
宽带中国
Digital Economy
Polycentric Spatial Structure
Regional Economic Inequality
Broadband China
