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	param	t-stat
$ω$	0.0393	15.75
$α$	0.0754	10.67
$β$	0.9246	181.75
$γ$	0.4109	10.37
$δ$	1.3633	13.11

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Williams Partners LP APARCH Volatility Analysis

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News Impact Curve

Volatility Forecast

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