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	param	t-stat
$ω$	2.8395	4.69
$α$	0.0505	48.40
$β$	0.9957	1,232.27
$ν$	4.7498	14.85

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Shanghai Shenzhen CSI 300 Index GAS-GARCH Student T Volatility Analysis

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News Impact Curve

Volatility Forecast

Parameter Estimates

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