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)

Note: , , and are significant at 10, 5, and 1% levels, respectively; values are in parentheses.