| Equation | Excluded | chi2 | Prob > chi2 |
| TRA | GDP | 8.0091 | 0.018 |
| TRA | K | 11.816 | 0.003 |
| TRA | All | 25.71 | 0.000 |
| GDP | TRA | 4.5e+05 | 0.000 |
| GDP | K | 6.3e+05 | 0.000 |
| GDP | All | 2.7e+06 | 0.000 |
| K | TRA | 8.9127 | 0.012 |
| K | GDP | 19.008 | 0.000 |
| K | All | 32.856 | 0.000 |