ESTIMATION RISK IN GARCH VaR AND ES ESTIMATES
GARCH 模型中 VaR 与 ES 估计的估计风险AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接研究 GARCH 条件波动下的 VaR、ES 及其估计不确定性,对应风险与波动率。
GARCH 模型中 VaR 与 ES 估计的估计风险AI 解读 ↓
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Value-at-risk (VaR) and expected shortfall (ES) are now both widely used risk measures. However, users have not paid much attention to the estimation risk issues, especially in the case of heteroskedastic financial time series. The key challenge arises from the fact that the estimated generalized autoregressive conditional heteroskedasticity (GARCH) innovations are not the true independent innovations. The purpose of this work is to provide an analytical method to assess the precision of conditional VaR and ES in the GARCH model estimated by the filtered historical simulation (FHS) method based on the asymptotic behavior of the residual empirical distribution function in GARCH processes. The proposed method is evaluated by simulation and proved valid.