Research Article
Do Scarce Precious Metals Equate to Safe Harbor Investments? The Case of Platinum and Palladium
Table 5
Summary statistics of ARFIMA-FIGARCH and ARFIMA-FIAPARCH models.
| Precious metals | ARFIMA-FIGARCH | ARFIMA-FIAPARCH | -ARFIMA | ARCH | -FIGARCH | AIC | Log-likelihood | -ARFIMA | ARCH | -FIGARCH | Gamma | AIC | Log-likelihood |
| Platinum | −0.053 (0.039) | (1,1) | 0.482 (0.000) | 1.501 | −4146.860 | −0.054 (0.032) | (1,1) | 0.517 (0.000) | −0.090 (0.091) | 1.500 | −4141.053 | Palladium | −0.028 (0.307) | (1,1) | 0.443 (0.000) | 2.310 | −6380.522 | −0.028 (0.298) | (1,1) | 0.440 (0.000) | −0.029 (0.450) | 2.322 | −6379.631 |
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Note: , , and are significant at 10, 5, and 1% levels, respectively; values are in parentheses.
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