| LM Test Statistic | Model (1) | Model (2) |
| R2 | 0.9562 | 0.9977 |
| Adjusted R2 | 0.9092 | 0.9934 |
| F-statistics | 371.10 (0.014) | 236.20 (0.000) |
| Multicollinearity | 1.499624 (0.0056) | 1.8796 (0.0109) |
| Serial Correlation | 10.425 (0.0338) | 23.484 (0.0002) |
| Heteroscedasticity | 44.00 (0.4290) | 30.00 (0.4140) |
| Ramsey RESET test for normality | 2.12 (0.1022) | 2.79 (0.0718) |