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	param	t-stat
$ω$	0.0119	19.73
$α$	0.0675	19.14
$β$	0.9259	506.23
$γ$	0.0056	1.08

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S&P GSCI Spot Index GJR-GARCH Volatility Analysis

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News Impact Curve

Volatility Forecast

Parameter Estimates

Other S&P GSCI Spot Index Analyses