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	param	t-stat
$ω$	0.0181	21.58
$α$	0.0662	24.28
$β$	0.9337	624.95
$γ$	-0.0189	-4.31

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S&P GSCI Grains Spot Index GJR-GARCH Volatility Analysis

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News Impact Curve

Volatility Forecast

Parameter Estimates

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