Efficiently Backtesting Conditional Value-at-Risk and Conditional Expected Shortfall
条件风险价值与条件预期损失的高效回测AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接研究金融 VaR 与 ES 风险回测,并以 ARMA-GARCH 条件波动模型作为建模框架。
条件风险价值与条件预期损失的高效回测AI 解读 ↓
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–Given the importance of backtesting risk models and forecasts for financial institutions and regulators, we develop an efficient empirical likelihood backtest for either conditional value-at-risk or conditional expected shortfall when the given risk variable is modeled by an ARMA-GARCH process. Using a two-step procedure, the proposed backtests require less finite moments than existing backtests, allowing for robustness to heavier tails. Furthermore, we add a constraint on the goodness of fit of the error distribution to provide more accurate risk forecasts and improved test power. A simulation study confirms the good finite sample performance of the new backtests, and empirical analyses demonstrate the usefulness of these efficient backtests for monitoring financial crises.