Spatial Heterogeneity of Coupling Coordination Development between Logistics and Economy in Central Plains of China

Table 6

Results of multicollinearity test.

Models	Nonstandardized coefficient		Standard coefficient	t	Sig.	Covariance statistics
	B	Standard error				Tolerances	VIF
1. Urbanization rate 2. Number of students in general higher education institutions 3. R&D internal expenses 4. Population density	0.362	0.030		11.922	0.000
	0.227	0.064	0.419	3.541	0.002	0.704	1.420
	0.152	0.138	0.213	1.102	0.281	0.264	3.791
	0.237	0.121	0.377	1.953	0.062	0.264	3.787
	0.137	0.062	0.226	−2.203	0.037	0.940	1.063