Below the zero lower bound: A shadow-rate term structure model for the euro area

Wolfgang Lemke and Andreea L. Vladu

No 32/2016, Discussion Papers from Deutsche Bundesbank

Abstract: We propose an arbitrage-free shadow-rate term structure model to analyze the euro-area yield curve from 1999 to mid-2015, when bond yields turned negative at various maturities. In the model the 'shadow rate' can reach any positive or negative level, while the actual one-month rate cannot fall below some lower bound perceived by market participants. This bound is estimated to have first ranged marginally above zero, before falling to -11 bps in September 2014. We show analytically that the lower bound itself can be interpreted as a 'policy parameter' and interpret the September 2014 ECB rate cut from this perspective. Our model improves upon a standard Gaussian affine model by providing a better match with survey forecasts of short-term rates during the low-rate period and by capturing the decline in yield volatility. The model implies that since mid-2012, the median horizon after which future short rates are expected to return to 25 bps has ranged between 18 and 62 months. However, the liftoff timing, as well as the quantification of forward premia, is highly sensitive to the level of the lower bound.

Keywords: term structure of interest rates; lower bound; nonlinear state-space model; monetary policy expectations (search for similar items in EconPapers)
JEL-codes: C32 E43 E52 (search for similar items in EconPapers)
Date: 2016
New Economics Papers: this item is included in nep-eec, nep-mac and nep-mon
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (33)

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Working Paper: Below the zero lower bound: a shadow-rate term structure model for the euro area (2017)
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Persistent link: https://EconPapers.repec.org/RePEc:zbw:bubdps:322016

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