Backtesting Systemic Risk Forecasts using Multi-Objective Elicitability
利用多目标可诱导性回测系统性风险预测AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确以 CoVaR、CoES 和 MES 等系统性风险度量的预测比较及回测为对象,直接对应尾部与系统性风险。
利用多目标可诱导性回测系统性风险预测AI 解读 ↓
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Systemic risk measures such as CoVaR, CoES and MES are widely-used in finance, macroeconomics and by regulatory bodies. Despite their importance, we show that they fail to be elicitable and identifiable. This renders forecast comparison and validation, commonly summarised as `backtesting', impossible. The novel notion of \emph{multi-objective elicitability} solves this problem. Specifically, we propose Diebold--Mariano type tests utilising two-dimensional scores equipped with the lexicographic order. We illustrate the test decisions by an easy-to-apply traffic-light approach. We apply our traffic-light approach to DAX~30 and S\&P~500 returns, and infer some recommendations for regulators.
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