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{name} Model Equation

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Parameter	Value	t-statistic
ω const Unconditional variance weight	0.0259	20.29***
α ARCH Response to squared shocks	0.0413	19.84***
β GARCH Volatility persistence	0.9365	563.49***
γ leverage Additional response to negative shocks	0.0243	6.07***

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AT&T Inc GJR-GARCH Volatility Analysis

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