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    经济经纬 2021 Issue (6) :21-31
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    数字经济、空间溢出与城市经济高质量发展
鲁玉秀, 方行明, 张安全
西南财经大学 经济学院,四川 成都 610074
    Digital Economy, Spatial Spillover and High-Quality Development of Urban Economy
    LU Yuxiu, FANG Xingming, ZHANG Anquan
School of Economics, Southwestern University of Finance and Economics, Chengdu 610074, China
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摘要 城市是数字经济的载体,数字经济资源集聚在城市地域空间,数字经济的扩张必然推动城市经济发展质量的提升。基于2003—2018年中国284个地级城市平衡面板数据,采用双重固定效应下的空间杜宾模型(SDM),评估数字经济对城市经济发展的影响。结果显示:数字经济发展不仅能显著提升本地城市经济发展质量,也促进了邻近城市经济发展,具有空间溢出效应。数字经济刺激的城市创新、市场潜力和产业集聚是提升城市经济发展质量的传导路径。进一步的异质性检验表明:数字经济对当地经济发展的促进作用与城市规模大小正相关,而小城市数字经济的空间溢出效应更为显著;数字经济细分化检验得出各维度对当地城市经济发展有直接推动作用,仅数字产业基础推动了邻近城市经济发展;分区域来看,数字经济对本地城市经济发展的推动作用和地区经济发达程度正相关,而对邻近地区经济发展均未表现出显著影响。
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鲁玉秀
方行明
张安全
关键词城市   数字经济   空间溢出   高质量发展   技术创新     
Abstract: The city is the carrier of the digital economy, and the resources of the digital economy are concentrated in the urban regional space. The expansion of the digital economy will inevitably promote the improvement of the urban economy development. Based on the balanced panel data of 284 prefecture-level cities in China from 2003 to 2018, this paper uses the SDM model under dual fixed effect to evaluate the effect of the digital economy on urban economic development. The results indicate that the development of digital economy can not only significantly promote the economic development of local cities, but also improve adjacent cities' development with spatial spillover effect. The digital economy stimulates the urban innovation, market potential and industrial agglomeration which are the transmission path to boost urban economic development. The further heterogeneity test shows that the promoting effect of digital economy for local city's development is positively correlated with city scale, while the spatial spillover effect of digital economy in small cities is more significant. The subdivision test of digital economy shows that each dimension directly promotes the economic development of local cities, and only the foundation of digital industry drives the economic development of neighboring cities. In terms of sub-region, the role of digital economy in promoting the economic development of local cities is positively related to the degree of regional economic development, but has no significant impact on the economic development of neighboring areas.
KeywordsCity   Digital Economy   Space Spillover   High-Quality Development   Technical Innovation     
收稿日期 2020-12-25; 接受日期 ;
基金资助:中央高校基本科研业务费一般项目(JBK2107125)
作者简介: 鲁玉秀(1982-),女,河南延津人,博士研究生,主要从事城市经济研究;方行明(1956-),男,安徽南陵人,研究员,博士生导师,主要从事国民经济、能源经济研究;张安全(1985-),男,四川苍溪人,博士,副教授,主要从事消费经济研究。张安全为本文通讯作者。
引用本文:   
鲁玉秀, 方行明, 张安全.数字经济、空间溢出与城市经济高质量发展[J].  经济经纬, 2021,6: 21-31
LU Yuxiu, FANG Xingming, ZHANG Anquan.Digital Economy, Spatial Spillover and High-Quality Development of Urban Economy[J]  Economic Survey, 2021,V38(6): 21-31
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http://www.jjjw.org.cn/CN/     或     http://www.jjjw.org.cn/CN/Y2021/V38/I6/21
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