Research Article
Do Scarce Precious Metals Equate to Safe Harbor Investments? The Case of Platinum and Palladium
Table 2
Summary statistics of ARMA and GARCH filtering.
| Precious metals | ADF | ARMA | AIC | LM test | ARCH-LM | GARCH | AIC | ARCH-LM |
| Platinum | −44.417 (0.000) | (1,1) | 1.841 | 0.741 (0.476) | 243.944 (0.000) | (1,1) | 1.508 | 1.565 (0.206) | Palladium | −43.978 (0.000) | (2,1) | 2.644 | 0.926 (0.396) | 138.262 (0.000) | (2,1) | 2.330 | 1.717 (0.180) |
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Note: , , and are significant at 10, 5, and 1% levels, respectively; values are in parentheses.
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