| Variable | VIF | 1/VIF |
| RD | 4.169 | 0.240 |
| PPI | 1.036 | 0.965 |
| INNO | 4.218 | 0.237 |
| MAR | 1.318 | 0.759 |
| RDP | 4.550 | 0.220 |
| HUM | 1.039 | 0.962 |
| FIN | 1.053 | 0.950 |
| Mean VIF | 2.483 |
|