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A Shadow Rate or a Quadratic Policy Rule? The Best Way to Enforce the Zero Lower Bound in the United States

Martin M. Andreasen and Andrew C. Meldrum

No 2018-056, Finance and Economics Discussion Series from Board of Governors of the Federal Reserve System (US)

Abstract: We study whether it is better to enforce the zero lower bound (ZLB) in models of U.S. Treasury yields using a shadow rate model or a quadratic term structure model. We show that the models achieve a similar in-sample fit and perform comparably in matching conditional expectations of future yields. However, when the recent ZLB period is included in the sample, the models ' ability to match conditional expectations away from the ZLB deteriorates because the time-series{{p}}dynamics of the pricing factors change. In addition, neither model provides a reasonable description of conditional volatilities when yields are away from the ZLB.

Keywords: Quadratic term structure models; Sequential regression approach; Shadow rate models; Zero lower bound (search for similar items in EconPapers)
JEL-codes: E43 E47 G12 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-mac and nep-mon
Date: 2018-08-13
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DOI: 10.17016/FEDS.2018.056

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