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	param	t-stat
$ω$	1.4824	2.21
$α$	0.2624	2.28
$β$	0.0085	0.10
$γ_{1}$	-6.7557	-1.10
$γ_{2}$	12.5138	1.13
$γ_{3}$	-14.1181	-1.14
$γ_{4}$	13.6841	1.23
$γ_{5}$	0.1836	0.03
$γ_{6}$	-11.7586	-1.99
$γ_{7}$	7.7384	1.78

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Shengfeng Development Ltd Zero Slope Spline-GARCH Volatility Analysis

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