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Extreme Value Theory And Financial Market Risk Measurement:Empirical Evidence Of SSEC And SP500

机译:极值理论与金融市场风险度量:SSEC和S&P500的经验证据

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In financial risk management, a lot of investors focus on the extreme event with lower probability and larger loss. This paper use ARMA( 1, 1)-GJR(1, 1) to model conditional loss and volatility of SSEC and S&P500, and apply extreme value theory(EVT) to model the extreme tail of standard residual series, and then estimate quantile and calculate corresponding Value-at-Risk( VaR), at last, we test the accuracy of VaR model used by Back-testing method of Kupiec(1995) and ChristoffersenC 1998). Our results show that the conditional losses series exhibits skewed and fattailed distribution; the conditional volatility exhibits significant leverage effect for SSEC and S & P500; the GPD model fits excess losses well. VaR models used in this paper measure dynamic risk in SSEC and S & P500 stock markets at 95%, 99% levels accurately, the VaR model do not significant prefer to either market SSEC or S & P500.
机译:在金融风险管理中,许多投资者将重点放在可能性较低,损失较大的极端事件上。本文使用ARMA(1,1)-GJR(1,1)对SSEC和S&P500的条件损失和波动率进行建模,并应用极值理论(EVT)对标准残差序列的极值尾部进行建模,然后估计分位数和计算相应的风险价值(VaR),最后,通过Kupiec(1995)和ChristoffersenC(1998)的Back-testing方法测试使用的VaR模型的准确性。我们的结果表明,条件损失序列表现出偏态和尾态分布。条件波动率对SSEC和S&P500具有显着的杠杆作用; GPD模型非常适合超额损失。本文中使用的VaR模型可以准确地在95%,99%的水平上测量SSEC和S&P500股票市场中的动态风险,VaR模型并不明显偏爱市场SSEC或S&P500。

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