From: How does high-speed railway affect green technology innovation? A perspective of high-quality human capital
Variable
VIF
1/VIF
ID
2.85
0.351
ED
2.29
0.436
FD
1.42
0.705
HSR
1.24
0.807
FI
1.18
0.847
GS
1.14
0.874
Mean VIF
1.69