Table A2.
Post Estimation Diagnostics
| Palladium | Platinum | Silver | |
|---|---|---|---|
| Ljung-Box Q(6) | 5.2051 (0.5178) | 2.3646 (0.883) | 5.7490 (0.4519) |
| Ljung-Box Q(12) | 7.0236 (0.8561) | 13.600 (0.327) | 24.084* (0.0198) |
| McLeod-Li(6) | 6.2011 (0.4010) | 1.9854 (0.921) | 2.4685 (0.8720) |
| McLeod-Li(12) | 18.893* (0.0911) | 5.234 (0.950) | 11.3248 (0.5013) |
Note: The Ljung-Box and McLeod tests provide the empirical statistics respectively for the serial correlation and remaining conditional heteroscedasticity of orders 6 and 12 for robustness purposes.