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    经济经纬 2023 Issue (1) :14-24
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    数字经济影响城市创新质量的效应与机制研究
张营营1, 彭硕毅2, 白东北3
1.西安邮电大学 经济与管理学院,陕西 西安 710061;
2.西北大学 经济管理学院,陕西 西安 710127;
3.安徽财经大学 经济学院,安徽 蚌埠 233030
    A Study of The Effect and Mechanism of the Impact of Digital Economy on Urban Innovation Quality
    ZHANG Yingying1, PENG Shuoyi2, BAI Dongbei3
1. School of Economic & Management, Xi’an University of Posts & Telecommunications, Xi’an 710061, China;
2. School of Economic & Management, Northwest University, Xi’an 710127, China;
3. School of Economic, Anhui University of Finance and Economics, Bengbu 233030, China
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摘要 在理论阐述数字经济对城市创新质量作用机理的基础上,以包含专利价值信息的创新指数测度中国城市创新质量,估计数字经济对城市创新质量的影响效应及其作用机制。研究发现:数字经济显著促进了中国城市创新质量的提升,在利用工具变量法和多期双重差分法克服潜在内生性问题,以及进行一系列稳健性检验后结论依然成立。同时,从长期来看,这种作用还表现出明显的条件收敛趋势。影响机制的检验表明,优化创新资源配置和扩大消费市场规模是数字经济驱动城市创新质量提升的重要渠道。最后,门槛模型的分析显示,数字经济对城市创新质量的积极影响存在“边际效应”递增的非线性特征,表明“梅特卡夫法则”在城市创新系统中完全适用,并且在充分考虑创新资源配置、消费市场规模的调节下,城市创新系统中数字经济的动态溢出效果会进一步得到强化。
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张营营
彭硕毅
白东北
关键词数字经济   城市创新质量   创新资源配置   消费市场规模   门槛模型     
Abstract: On the basis of theoretically expounding the mechanism of digital economy on urban innovation quality, this paper measures Chinese urban innovation quality by innovation index including patent value information, and estimates the effect and mechanism of digital economy on urban innovation quality. The results show that the digital economy has significantly promoted the improvement of the quality of urban innovation in China, and the conclusion is still valid after selecting the share transfer tool variable method and multi-period double difference method to overcome the potential endogenous problems, as well as a series of robustness tests. At the same time, this effect also shows a conditional convergence trend in the long run. Further tests on mechanisms show that optimizing the allocation of innovation resource and enlarging the scale of consumption market are important channels for digital economy to promote the quality of urban innovation. Finally, the analysis of threshold model analysis shows that the positive impact of digital economy on urban innovation quality has a significant non-linear characteristic of increasing “marginal effect” increasing, which indicates that “Metcalfe Law” is fully applicable in urban innovation systems. And under the full consideration of the allocation of innovation resources and the adjustment of the scale of consumer market, the dynamic spillover effect of digital economy in urban innovation system will be further strengthened.
KeywordsDigital Economy   Urban Innovation Quality   Innovation Resource Allocation   Consumption Market Size   Threshold Model     
收稿日期 2022-02-16; 接受日期 ;
基金资助:教育部人文社会科学研究基金项目(22YJC790173);陕西省社会科学基金年度项目(2021D035);陕西省教育厅一般专项科研计划项目(21JK0361)
作者简介: 张营营(1986— ),男,山东菏泽人,博士,讲师,主要从事技术创新与产业发展研究;彭硕毅(1987— ),男,陕西汉中人,博士研究生,主要从事区域创新研究;白东北(1989— ),男,吉林长春人,博士,讲师,主要从事产业与贸易发展研究。
引用本文:   
张营营, 彭硕毅, 白东北.数字经济影响城市创新质量的效应与机制研究[J].  经济经纬, 2023,1: 14-24
ZHANG Yingying, PENG Shuoyi, BAI Dongbei.A Study of The Effect and Mechanism of the Impact of Digital Economy on Urban Innovation Quality[J]  Economic Survey, 2023,V40(1): 14-24
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