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	param	t-stat
$ω$	0.7887	3.27
$α$	0.0000	0.00
$β$	1.0000	35.66
$γ_{1}$	-2.8392	-1.27
$γ_{2}$	3.1739	0.78

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Ishares Enhnc Sht-Trm BD ACT Zero Slope Spline-GARCH Volatility Analysis

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News Impact Curve

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