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	param	t-stat
$ω$	0.0590	10.87
$α$	0.0863	21.18
$β$	0.9137	208.23
$γ$	0.4541	8.89
$δ$	1.2169	17.59

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21st Century Insurance Group APARCH Volatility Analysis

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Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other 21st Century Insurance Group Analyses