A Comparative Study of Data Governance Policies in China and Europe Based on PMC Index Model

In the context of global digital transformation, data policy has an important impact on national and regional economic development, social governance, and international competitiveness. Through the comparative analysis of data policies of China and Europe, it could provide reference for the further development and improvement of China's data policies. For this reason, this research selects 10 representative data policies from China and the European Union, analyzes them by text mining such as LDA topic model and high-frequency words, and constructs a PMC index model to quantitatively evaluate and compare the data policies. Research has found that most of the data policies in China and the EU are in a good grade, and the gap between the scores is small, but the EU data policies are more balanced, the system is coordinated, the legal effect is high, and the protection of personal data rights is emphasized. China has built a multi-dimensional governance system with multiple policies, and its Data Security Law has become the only policy in all samples to achieve an excellent level, but it still needs to be improved in terms of legal construction, clear rights of subjects, and data sharing norms.