Spatiotemporal Evolution and Influencing Factors of Coupling Coordination Between Green Building Industry and Development Environment in the Yangtze River Economic Belt

As a primary engine and strategically leading region for China’s economic development, the Yangtze River Economic Belt (YREB) has a green building industry whose growth holds demonstrative significance for the low-carbon transition of the national construction sector. Based on panel data from 11 provinces (municipalities) within the YREB from 2012 to 2022, this study constructs a comprehensive evaluation index system to measure the Coupling Coordination Degree (CCD) between the green building industry and its development environment. Employing methods such as the Dagum Gini coefficient, spatial autocorrelation, and Standard Deviation Ellipse(SDE), we analyze the spatiotemporal evolution characteristics of this CCD. Furthermore, a fixed-effects model is utilized to explore the influencing factors. The results indicate that: (1) Both the level of the green building industry and the quality of the development environment in the YREB show an upward trend, with the gap between them gradually narrowing. (2) The CCD between the green building industry and the development environment across provinces and municipalities generally increased, exhibiting a coexistence of "overall level improvement" and "internal gradient differentiation" in spatiotemporal distribution, and a spatial correlation characteristic of "high in the east and low in the west". (3) Urbanization level, government regulation, technological innovation, and consumption capacity have significant positive effects on the CCD, whereas the roles of education level and public environmental concern are not yet significant. This study can provide references for formulating differentiated regional policies and optimizing the development environment for the green building industry.