Research On Digital Industry Agglomeration And Economic Growth

The report of the 20 th Party Congress emphasizes the need to vigorously develop the digital economy,promote the deep integration of the digital economy and the real economy,and create digital industry clusters with international competitiveness.In recent years,the accelerated innovation of the Internet,big data,cloud computing,artificial intelligence and other technologies has further promoted the innovative development of digital industry clusters and the deep integration of digital technology and the real economy.The "China Digital Economy Development Research Report(2023)" released by the China Academy of Information and Communication Research shows that the scale of China’s digital economy reached 50.2 trillion yuan in 2022,accounting for 41.5% of GDP,of which the scale of digital industrialization and the scale of industrial digitization reached 9.2 trillion yuan and 41 trillion yuan respectively,becoming the main engine of high-quality economic development.However,facing the current fierce international competition,China’s digital industry agglomeration is facing new challenges,highlighted by the lack of technical resources,lack of innovative talents and insufficient crossborder integration and innovation.Although there are theories discussing the importance of digital industry agglomeration to economic development,there is still a lack of empirical studies on the intrinsic mechanism of digital industry agglomeration affecting economic growth and its role in the context.This paper focuses on "How does digital industry agglomeration affect economic growth?".This is the core research question.Firstly,this paper analyzes the current situation of digital industry research,introduces the research results on digital industry,identifies the limitations of existing research,and proposes the research questions and hypotheses of this paper.Secondly,this paper innovatively selects a total of 113 industries that meet the definition of digital industry based on the Statistical Classification of Digital Economy and its Core Industries(2021)and the National Economic Classification of Industries(2017),and then obtains a total of 1114 listed companies that meet the category of digital industry based on the data of listed companies,and through the 2011 to 2020 The main effect analysis was conducted by provincial panel data,using fixed effect model.Furthermore,this paper investigates the mechanism of digital industry agglomeration through technological innovation and thus economic growth by using technological innovation including independent innovation and cooperative innovation as mediating variables,and explores the moderating effect of talent agglomeration and digital infrastructure as moderating variables on this mechanism.Finally,after the robustness and endogeneity tests,the paper further conducts a heterogeneity test to discuss the impact of digital industry agglomeration on economic growth in East,Central and West China.The study shows that,firstly,digital industry agglomeration can effectively promote regional economic growth.Second,the degree of digital industry agglomeration in most provinces is not high,and the digital industry needs further development and agglomeration.Third,technological innovation,including independent innovation and cooperative innovation,plays a mediating effect between digital industry agglomeration and regional economic growth,and it is a partial mediating effect.Fourth,the moderating effect of talent agglomeration on digital industry agglomeration affecting technological innovation is not significant.