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	param	t-stat
$ω$	0.5289	2.73
$α$	0.1328	1.49
$β$	0.2585	0.75
$γ_{1}$	-304.0754	-2.51
$γ_{2}$	462.3314	2.58
$γ_{3}$	-259.6405	-2.72
$γ_{4}$	174.5677	2.30
$γ_{5}$	-83.6579	-1.10
$γ_{6}$	-6.3960	-0.09
$γ_{7}$	23.5042	0.58

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