[Retracted] Measurement of Coordination Degree between Economy and Logistics in Hebei Province, China, Based on Fractional Grey Model (1, 1)

Table 2

Stages of coupling degree.

Stages	Low stage	Antagonistic stage	Running-in stage	High stage
Coupling degree C	0 < C ≤ 0.3	0.3 < C ≤ 0.5	0.5 < C ≤ 0.8	0.8 < C ≤ 1