Research on the Coupling of Green Finance and Ecological Efficiency from the Perspective of Dual Carbon

A set of green finance and ecological efficiency evaluation system was constructed based on panel data of three major regions, provinces and cities in China, and the overall national level from 2014 to 2023. The current status of green finance in China was analyzed, and ecological efficiency was evaluated.By establishing a coupling degree model, the degree of coupling between the two was analyzed, revealing the complex relationship between them.Analysis shows that there is a relatively small gap in the development level of green finance among different regions in China, while there are significant differences in ecological efficiency.The coupling and coordination degree between green finance and ecological efficiency is in a challenging stage under the evaluation criteria in this article, showing a phenomenon of "high in the east and low in the west".