Modern Social Science Research

Objective Digital economy is a new major form of world economy, and it is a major strategic choice for China to construct a new development pattern of "double economic cycle", and there are obvious mutual pushing effects between the two. The current situation of collaborative development between the two is analyzed to provide theoretical support for accelerating the construction of a new development pattern and expanding the scale of the digital economy. Method The entropy weight method is used to measure the digital economy index, economic inner cycle index and economic outer cycle index of 30 provinces and cities in China (except Tibet, Hong Kong, Macao and Taiwan) from 2013 to 2020. The Moran index method is used to analyze the spatial correlation of the national digital economy index. Therefore, the coupling degree and coupling coordination degree of digital economy, economic inner circulation and economic outer circulation calculated based on the coupling coordination degree model. Conclusion The results show that the regional development of digital economy in China is unbalanced, and there is a positive spatial correlation among provinces and cities. The development level of economic inner circulation needs to be improved, and the development level of outer circulation varies greatly among regions. Digital economy, economic inner cycle and economic outer cycle have a good coupling relationship but poor coordination, and the lagging development level of the outer cycle is an important factor hindering the coordinated development of the three.

Digital economy; Economic dual circulation; Coupling coordination degree model; Type of imbalance