Evaluation and Combination of Conditional Quantile Forecasts
条件分位数预测的评价与组合AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要以条件分位数预测为检验对象,并明确应用于四种风险价值模型的评价与比较,直接对应金融尾部风险方向。
条件分位数预测的评价与组合AI 解读 ↓
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We propose an encompassing test for comparing conditional quantile forecasts in an out-of-sample framework. Our test provides a basis for forecast combination when encompassing is rejected. Its central features are (1) use of the “tick” loss function, (2) a conditional approach to out-of-sample evaluation, and (3) derivation in an environment with asymptotically nonvanishing estimation uncertainty. Our approach is valid under general conditions; the forecasts can be based on nested or nonnested models and can be obtained by general estimation procedures. We illustrate the test properties in a Monte Carlo experiment and apply it to evaluate and compare four popular value-at-risk models.