Empirical Study on Coupling and Coordinated Development of “Energy-Finance-Environment” in the Middle Reaches of Yangtze River

In the important transition period of high-quality development in China, it is of great significance to explore the coordinated development among finance, energy and environment. In this paper, the dynamic average weight method with improved entropy value is used, and the index system of “energy-finance-environment” three-dimensional system (hereinafter referred to as “EFE system”) is established to explore the coordinated development and dynamic evolution of the coupling. The results show that the newly constructed dynamic average weighting method is reasonable and effective, and can reflect the time-varying characteristics of each subsystem index weight; from 2009 to 2017, the EFE values of the four provinces in the middle reaches of the Yangtze river present different development trends, and the trend of finance shows an overall upward trend, while the trend of environment and energy show twists and turns; the coupling degrees of the four provinces are high, but the coordination degrees are generally low, failing to reach the coordination level; the restricting factors of coordinated development are mainly the backward type of financial development and energy efficiency. This conclusion provides a reference for a more rational grasp of the coordinated development of EFE system in the middle reaches of Yangtze river