| The "14th five year plan" issued in March 2021 pointed out that we should adhere to innovation driven development,promote the deep integration of digital technology and the real economy,rely on digital technology innovation driven,and use new kinetic energy to promote new development.Digital technology has become an important engine driving the innovation and development of enterprises.However,at present,the digital transformation strategy of some enterprises is not clear,coupled with the disadvantages of weak enterprise foundation and insufficient innovation,the digital transformation strategy of many enterprises has become blurred.Relevant research found that only 16% of Chinese enterprises have produced good innovation performance after digital transformation.Facing the contradiction between the increasingly important strategic position of digital economy and the prominent bottleneck of digital economy development,it is necessary to deeply study the impact and mechanism of digital technology on enterprise innovation,so as to provide empirical evidence support for giving better play to the innovation driving role of digital economy.Based on literature review,theoretical research and case analysis,this thesis uses 48383 sample enterprises of Zhongguancun Haidian Science and Technology Park from 2015 to2019 to carry out empirical research by using propensity score matching double difference model.Firstly,it measures the impact of digital technology on enterprise innovation from the perspective of innovation process and innovation mode.At the same time,parallel trend testing,placebo testing and other methods are used to ensure the robustness of the model.Secondly,it further calculates the multiplier effect,dynamic effect and heterogeneity effect of digital technology enabled enterprise innovation.Finally,the intermediary effect model is used to test and analyze the mechanism.The innovation of this thesis is mainly reflected in: from the perspective of research,systematically study the effect and mechanism of digital technology enabled enterprise innovation from the micro level;In terms of method application,psm-did and other frontier causal inference models are used for empirical research,which effectively avoids the endogenous problem;In terms of data sources,a large sample data set of enterprises in Zhongguancun Science and technology park is used for empirical research,which has strong typicality,scientificity and representativeness,and is helpful to deeply explore the micro mechanism of digital economy.The study found that,first of all,four digital technologies such as big data and cloud computing have a significant role in improving enterprise innovation.This conclusion remains stable after endogenous processing and replacing the explained variables.Secondly,compared with purchasing and introducing innovation,digital technology can stimulate enterprises’ independent innovation more;The multiplier effect of the integration and application of multiple digital technologies is significant,which can achieve the effect of "1+ 1 > 2";The promotion effect of digital technology on enterprise innovation shows the characteristics of U-shaped dynamic change over time,that is,the combination of short-term pain and long-term dividend;Heterogeneity analysis shows that digital technology can stimulate the innovation vitality of large enterprises,state-owned enterprises,digital industrialization enterprises and high-tech enterprises.Finally,mechanism research shows that talent structure effect,financing constraint effect,collaborative innovation effect,precise allocation effect and efficiency improvement effect are important mechanisms for digital technology enabled enterprise innovation.Based on the above research conclusions,this thesis puts forward a series of policy suggestions aimed at accelerating the innovation of digital technology enabled enterprises. |