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	param	t-stat
$ω$	0.0182	21.62
$α$	0.0662	24.35
$β$	0.9336	624.04
$γ$	-0.0187	-4.27

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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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