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	param	t-stat
$ω$	0.0128	14.84
$α$	0.0459	21.35
$β$	0.9410	341.80
$γ$	0.3805	13.04
$δ$	1.3885	17.74

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New Zealand Exchange Ltd NZX 15 Total Return Index APARCH Volatility Analysis

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