The Policy Effect of Digital Economy Strategy on the Development of Enterprise Intelligent Manufacturing: Quasi Natural Experiment Based on National Big Data Comprehensive Pilot Zones

In the background of digital change, intelligent manufacturing is the focus of enterprises to realize the deep integration of high-quality transformation and digital economy strategy. However, the policy function mechanism of big data business model construction on the development of enterprise intelligent manufacturing is still an unclear issue. This paper takes the establishment of the national big data comprehensive pilot zone as the quasi-natural experiment, based on the sample data of China's A-share listed companies from 2010 to 2020, and uses the multi-stage method to test the policy effect and mechanism of digital economy strategy on the development of enterprise intelligent manufacturing. The study found that the establishment of big data comprehensive pilot zone has a significant positive role in promoting the development of intelligent manufacturing of enterprises, indicating that the digital economy strategy can promote the development of intelligent manufacturing of enterprises, and this research conclusion is still established after a number of robustness tests. Heheterogeneity analysis shows that the digital economy strategy significantly promotes the development of intelligent manufacturing in enterprises with high level of intellectual property protection where enterprises are located. The research conclusion helps to further understand the policy effect of digital economy strategy and gather new momentum for the development of intelligent manufacturing of enterprises.