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arXiv 2302.02747econ.EMstat.ME
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检验分位数预测的最优性

Testing Quantile Forecast Optimality

Jack Fosten, Daniel Gutknecht, Marc-Oliver Pohle

AI总结:

本文提出基于矩等式框架的多期限分位数回归检验,评估分位数预测的自校准最优性,并扩展至更大信息集,模拟与实证揭示次优性成因。

摘要:

跨多个预测期限的分位数预测已成为许多金融机构、中央银行和国际组织的重要产出。本文针对此类分位数预测提出了误设定检验,用于评估在多个预测期限和/或分位数集合上的最优性。这些检验基于多重Mincer-Zarnowitz分位数回归,并置于矩等式框架中。我们的主要检验针对自校准这一原假设,该概念评估预测本身所含信息的最优性。我们提供了扩展,允许检验相对于更大信息集的最优性,以及一个多元扩展。重要的是,我们的检验不仅告知最优性的一般违反情况,还可能提供对特定形式次优性的有用见解。一项模拟研究考察了我们检验的有限样本性能,两个分别针对金融收益和美国宏观经济序列的实证应用表明,我们的检验能对分位数预测次优性及其原因产生有趣的见解。

英文摘要:

Quantile forecasts made across multiple horizons have become an important output of many financial institutions, central banks and international organisations. This paper proposes misspecification tests for such quantile forecasts that assess optimality over a set of multiple forecast horizons and/or quantiles. The tests build on multiple Mincer-Zarnowitz quantile regressions cast in a moment equality framework. Our main test is for the null hypothesis of autocalibration, a concept which assesses optimality with respect to the information contained in the forecasts themselves. We provide an extension that allows to test for optimality with respect to larger information sets and a multivariate extension. Importantly, our tests do not just inform about general violations of optimality, but may also provide useful insights into specific forms of sub-optimality. A simulation study investigates the finite sample performance of our tests, and two empirical applications to financial returns and U.S. macroeconomic series illustrate that our tests can yield interesting insights into quantile forecast sub-optimality and its causes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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