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	param	t-stat
$ω$	0.0321	20.52
$α$	0.0646	32.31
$β$	0.9354	491.55
$γ$	0.5332	16.80
$δ$	0.9611	21.53

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Marriott International Inc/MD APARCH Volatility Analysis

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News Impact Curve

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