In the context of accelerating the development of digital economy,intellectual property protection,as an important policy tool for external governance,has a significant impact on corporate digital technology innovation.Taking the construction of the intellectual property demonstration city as a quasi-natural experiment,this paper,based on the data of Chinese listed A-share manufacturing enterprises from 2009 to 2019,adopts the difference-in-differences model with multiple time periods to analyze the impact of development of the intellectual property demonstration city on the digital technology innovation of enterprises and its intrinsic mechanism.It is found that the construction of intellectual property demonstration city can significantly promote corporate digital technology innovation,and this conclusion remains unchanged after a series of robustness tests.Heterogeneity analysis shows that the building of intellectual property demonstration city has a more visible effect on promoting digital technology innovation of non-state-owned enterprises,enterprises in highly competitive industries and enterprises in areas of high-quality financial development.The mechanism tests indicate that the development of intellectual property demonstration city promotes enterprises'digital technology innovation by improving intellectual property protection,enlarging the technology market size and increasing enterprises'innovation investment.Further analysis reveals that digital resource allocation in regions,the government's attention to the digital domain and the vitality of corporate internal governance can all play significant positive moderating roles.In addition,the construction of intellectual property demonstration city has the strongest role in promoting innovation in data-element-driven industries.This paper expands the relevant research in the construction of intellectual property system and digital technology innovation,which provides an important reference for optimizing the policy design of intellectual property and promoting digital technology innovation.
Intellectual Property Demonstration Cityconstruction of intellectual property systemdigital technology innovation