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

Table 8

Coupling types and coupling stages in 2012.

Region	X	Y	C	D	Coupling type	Coordination degree	Coupling stage
Beijing	0.53	0.33	0.38	0.32	Environmental lag type	In coordination	High-level coupling
Tianjin	0.46	0.33	0.41	0.32	Environmental lag type	In coordination	High-level coupling
Shanghai	0.52	0.24	0.47	0.29	Environmental lag type	Low coordination	High-level coupling
Hunan	0.41	0.37	0.41	0.32	Synchronized model	In coordination	High-level coupling
Sichuan	0.44	0.33	0.46	0.31	Environmental lag type	In coordination	High-level coupling