Out-of-sample tests for conditional quantile coverage an application to Growth-at-Risk
条件分位数覆盖率的样本外检验及增长风险应用AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接研究样本外区间预测比较,并以经济活动下行风险的 Growth-at-Risk 预测为应用。
条件分位数覆盖率的样本外检验及增长风险应用AI 解读 ↓
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This paper proposes tests for out-of-sample comparisons of interval forecasts based on parametric conditional quantile models. The tests rank the distance between actual and nominal conditional coverage with respect to the set of conditioning variables from all models, for a given loss function. We propose a pairwise test to compare two models for a single predictive interval. The set-up is then extended to a comparison across multiple models and/or intervals. The limiting distribution varies depending on whether models are strictly non-nested or overlapping. In the latter case, degeneracy may occur. We establish the asymptotic validity of wild bootstrap based critical values across all cases. An empirical application to Growth-at-Risk (GaR) uncovers situations in which a richer set of financial indicators are found to outperform a commonly-used benchmark model when predicting downside risk to economic activity.