Research on the Impact Evaluation of Digital Finance on the Synergy between Economic Development and Ecological Environment

Table 7

Coupling types and coupling stages in 2000.

Region	X	Y	C	D	Coupling type	Coordination degree	Coupling stage
Beijing	0.47	0.38	0.37	0.32	Synchronized model	Coordinating	High-level coupling
Tianjin	0.35	0.38	0.38	0.3	Synchronized model	Coordinating	High-level coupling
Shanghai	0.57	0.27	0.51	0.3	Environmental lag type	Low coordination	Run-in stage
Hunan	0.33	0.33	0.35	0.29	Synchronized model	Coordinating	High-level coupling
Sichuan	0.34	0.28	0.37	0.28	Synchronized model	Low coordination	Run-in stage