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A small but practically useful modification to the Hodrick-Prescott filtering: A note

机译:对Hodrick-Prescott过滤的一个小但实际上有用的修改:一个纸条

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摘要

The Hodrick-Prescott (HP) filtering is widely applied to decompose macroeconomic time series, such as real Gross Domestic Product, into cyclical and trend components. This paper presents a small but practically useful modification to this approach. The reason why this modified filtering is of practical use is that it provides not only identical trend estimates as the HP filtering but also extrapolations of the trend. We provide a proof based on a ridge regression representation of the modified HP filtering. This is mainly because it enhances our understanding of the approach.
机译:HODRICK-PRESCOTT(HP)滤波被广泛应用于将宏观经济时间序列(如真正的国内产品)分解为周期性和趋势部件。本文提出了对这种方法的一个小而实际上有用的修改。这种修改过滤的原因是实际使用的原因是它不仅提供了与HP过滤的相同趋势估计,而且提供了趋势的外推。我们提供了一种基于修改的HP滤波的脊回归表示的证据。这主要是因为它增强了我们对方法的理解。

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