我国通信基础设施对城乡收入差距的影响研究——基于空间溢出的视角  

Research on the Influence of China’s Communication Infrastructure on Urban-Rural Income Gap:Based on the Perspective of Spatial Spillover

作　　者：孙文杰[1] 严文沁 SUN Wenjie;YAN Wenqin(Nanjing Audit University,Nanjing,211815;Nanjing University,Nanjing,210093)

机构地区：[1]南京审计大学经济学院 [2]南京大学长江产业经济研究院

出　　处：《中国经济问题》2021年第6期33-46,共14页China Economic Studies

基　　金：国家社会科学基金项目(15BJL017)的资助。

摘　　要：本文采用1999—2016年283个地级及以上城市面板数据和空间计量模型,考察通信基础设施对中国城乡居民收入差距的空间作用机制及影响效应。基于SLX和SDM模型的空间计量检验发现,通信基础设施有利于缩小城乡收入差距,城市化效应和产业结构效应两种中介机制在统计上显著。进一步研究发现,不同规模城市的通信基础设施对城乡居民收入差距的空间联动效应存在差异:中等城市通信基础设施对周边城市的城乡收入差距缩小均有显著溢出效应,而大城市的通信基础设施反而显著拉大周边城市的城乡收入差距,以大城市为核心的城市群内部空间资源错配仍较为严重。This paper uses panel data and spatial measurement models of 283 prefecture-level and above cities from 1999 to 2016.It mainly investigates the spatial mechanism of communication infrastructure on the income gap between urban and rural residents in China and its influencing effect.The spatial measurement test based on SLX and SDM models finds that the communication infrastructure is conducive to narrowing the urban-rural income gap.Urbanization effect and industrial structure effect,the two intermediary mechanisms are statistically significant.Further research found that there is a difference in the spatial linkage effect of communication infrastructure on the income gap between urban and rural residents of different scales:the infrastructure of medium-sized cities has a significant impact on the narrowing of urban-rural income gaps in neighboring cities,while the infrastructure of big cities has significantly widened the urban-rural income gap of the surrounding cities.The mismatch of space resources within the urban agglomeration with the big city as the core is still serious.

关 键 词：通信基础设施 城乡收入差距 城市规模 空间非均衡效应 

分 类 号：F124.7[经济管理—世界经济] F623