Dynamic Measurement and Comprehensive Evaluation of Coordinated Development of Circular Economy and Green Finance in Pearl River Delta Region of Guangdong Province: Based on Coupling Coordination Degree Model

With the launch of the national carbon trading market, the concept of circular economy development has entered the stage of full implementation. This paper takes the Pearl River Delta region of Guangdong province as the research object, selects the data of 9 cities in the Pearl River Delta region of Guangdong Province from 2018 to 2022 as the sample, uses the entropy method to determine the index weight, and uses the coupling coordination degree model to conduct an empirical analysis on the integrated development degree of circular economy and green finance. The findings are as follows: 1. There is a highly coupled relationship between circular economy and green amount, which indicates that the two systems are interdependent and mutually restricted, and there is a close positive relationship between them; 2. Affected by the epidemic, the coordinated development of circular economy and green finance from 2018 to 2022 generally showed a fluctuating upward trend, and most cities finally only reached the moderate coordination stage; 3. The development of the coupling and coordination degree of circular economy and green finance in different regions is different, and its development shows obvious imbalance.