数字经济发展与城市收缩——来自夜间灯光数据的证据  

The Development of Digital Economy and Urban Contraction:Evidence from Night Lighting Data

作　　者：汤凯[1] 刘晓康 TANG Kai;LIU Xiaokang(Business School,Zhengzhou University,Zhengzhou 450001,Henan)

机构地区：[1]郑州大学商学院,河南郑州450001

出　　处：《管理学刊》2024年第2期16-33,共18页Journal of Management

基　　金：国家社会科学基金项目一般项目(21BJY229);河南省高校哲学社会科学创新人才支持计划项目(2024-CXRC-13);河南省软科学项目(232400410001)。

摘　　要：数字经济正成为社会经济发展的新动能,它对于抑制城市收缩、促进城市协调发展具有深远影响。利用2011—2021年夜间灯光数据,识别城市收缩,并考察数字经济发展对城市收缩的影响。研究发现,数字经济发展可以显著抑制城市收缩;数字经济发展抑制城市收缩的效应在收缩型城市以及市场化水平低、教育水平低的地区表现得更为明显;城市收入差距、产业结构升级、城市创新创业是数字经济发展抑制城市收缩的重要渠道,加强网络基础设施建设会更有利于数字经济抑制城市严重收缩。进一步研究发现,数字经济发展对城市收缩的影响具有门槛效应,即当数字经济发展达到一定水平后,它对城市收缩的抑制作用才会显现,同时抑制作用具有边际报酬递增的后发性优势。本研究有助于揭示数字经济发展影响城市收缩的作用机制,对于如何利用数字经济有效抑制城市收缩提供了经验支持。Digital economy is becoming a new kinetic energy of social and economic development,which has a far-reaching impact on restraining urban contraction and promoting coordinated urban development.By using the night lighting data from 2011 to 2021,the urban contraction was identified,and the influence of digital economy development on urban contraction was investigated.It is found that the development of digital economy can significantly inhibit urban contraction.The effect of digital economy development on restraining urban contraction is more obvious in shrinking cities and areas with low marketization and low education level.Urban income gap,industrial structure upgrading and urban innovation and entrepreneurship are important channels for the development of digital economy to curb urban contraction.Strengthening the construction of network infrastructure can be more conducive to the digital economy to curb serious urban contraction.Further research shows that the influence of digital economy development on urban contraction has a threshold effect,that is,when the development of digital economy reaches a certain level,the inhibitory effect on urban contraction will appear,and the inhibitory effect has the advantage of increasing marginal return.This study is helpful to reveal the mechanism of digital economy development affecting urban contraction,and provides empirical support for how to effectively restrain urban contraction by using digital economy.

关 键 词：数字经济 城市收缩 夜间灯光数据 影响机制 门槛效应 

分 类 号：F061.5[经济管理—政治经济学]