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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
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.
ZHANG Yingying,PENG Shuoyi,BAI Dongbei. A Study of The Effect and Mechanism of the Impact of Digital Economy on Urban Innovation Quality. Economic Survey, 2023, 40(1): 014.
2023, Vol. 40 
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