| Breusch-Pegan Test | ||
| Hypothesis Test Sub-sample Α | ||
| Cross-sectional | Time series | Panel |
| 21.181 | 18.512 | 39.694 |
| 0.000 | 0.000 | 0.000 |
| Hypothesis Test Sub-sample B | ||
| Cross-sectional | Time Series | Panel |
| 141.460 | 0.039 | 141.500 |
| 0.000 | −0.841 | 0.000 |