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	param	t-stat
$ω$	0.0722	8.88
$α$	0.0974	16.83
$β$	0.8980	132.82
$γ$	0.6006	13.15
$δ$	0.9521	10.83

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PRA Health Sciences Inc APARCH Volatility Analysis

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Date Range:

Parameter Estimates

News Impact Curve

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