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	param	t-stat
$ω$	1.7181	6.77
$α$	0.1073	8.47
$β$	0.8564	61.01
$γ_{1}$	0.0087	3.95
$γ_{2}$	-0.0099	-3.68

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State Street Health Care Select Sector SPDR ETF Zero Slope Spline-GARCH Volatility Analysis

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