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| The Impact of Digital Service Industry Agglomeration on Urban Innovation Efficiency:Local Effect and Spatial Spillover |
| Wang Jingjing,Yang Yichen,Chen Jindan |
| (School of Economics, Nanjing University of Posts and Telecommunications, Nanjing 210023, China) |
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Abstract In pace with the technological revolution and industrial transformation, the digital economy has developed rapidly. Digital services integrating big data, cloud computing and other technologies have become one of the most active areas of global innovation. High-quality development of digital services is a strategic choice to drive innovation and reshape the pattern of international competition. At the same time, industrial agglomeration, as a classic spatial economic activity, has always been the focus of academic attention. The externalities generated by the spatial agglomeration of labor and enterprises from the same industry or different industries have an impact on local innovation activities. As far as the form of industrial agglomeration is concerned,the digital economy has changed the scope of industrial space, and has given birth to the networked development of industrial organizations. Industrial agglomeration is therefore not constrained by geographical conditions and human environment, forming a new spatial form of "virtual agglomeration". #br#In addition, the digital economy can promote the development of the service industry by boosting the digital upgrading of the service industry, saving transaction costs and stimulating the advantages of economies of scale. In the digital service industry, there are both services as intermediate inputs and services as final consumer goods. The former is tradable, while the latter is characterized by following demands, showing a strong spatial agglomeration feature. The agglomeration of digital service industry can break through the space limitation and achieve a more significant spatial agglomeration effect. Then, what is the role of digital service industry agglomeration in enhancing innovation efficiency?It will provide support for the high-quality development of China's digital economy and the implementation of innovation-driven strategy by clarifying the local effect and spatial spillover effect of digital service industry agglomeration on urban innovation efficiency, which has important theoretical and practical significance.#br#Compared with the existing research, this paper makes the following contribution. First, it takes the digital service industry agglomeration as the starting point to clarify its driving role in improving urban innovation efficiency. The existing research generally explores the relationship between digital economy or industrial cluster and innovation efficiency from the perspective of digital economy or industrial cluster. This paper expands the relevant research on digital economy and cluster economy. Secondly, this paper confirms the division of digital service industry, making up for the deficiencies of existing research on digital service industry and its spatial agglomeration. Thirdly, in order to avoid errors in the research results, this study uses the spatial Durbin model to explore the local effect and spatial spillover effect of digital service industry agglomeration.Fourthly, this paper uses the domestic market scale as the intermediary mechanism to clarify the mechanism of digital service agglomeration on innovation efficiency. This mechanism provides feasible experience for accelerating the construction of a unified national market and building a new development pattern focusing on domestic circulation.#br#Following the new development pattern with major domestic circulation as the main body, digital economy has become a key force to reshape the new competitive advantages of global economy and drive innovation. Drawing on the data of 259 prefecture-level cities in China from 2009 to 2019, this paper uses the CCR model of data envelopment analysis (DEA) to measure urban innovation efficiency, and explores the local effect and spatial spillover effect of digital service industry agglomeration on urban innovation efficiency based on the Spatial Durbin model. The results show that,first, digital service industry agglomeration can promote the improvement of local innovation efficiency, and also drive the innovation efficiency of neighboring cities through the spatial spillover effect. Secondly, the agglomeration of digital services helps to expand the scale of local market and give full play to the advantages of super-large market, thus improving the innovation efficiency of cities. Thirdly, in terms of local effect, the agglomeration of digital service industry in eastern and central China can significantly improve the innovation efficiency of the region, and the information transmission industry and information service industry can significantly promote the innovation efficiency of the region. The digital service agglomeration in central and western regions is proven to have a significant spatial spillover effect on urban innovation efficiency. The conclusion of this study will provide empirical support for the high-quality development of digital economy and the implementation of innovation-driven strategies.#br#
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Received: 18 July 2022
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