Assessment of hybrid Phillips Curve specifications

Marcelle Chauvet, Joonyoung Hur and Insu Kim

Economics Letters, 2017, vol. 156, issue C, 53-57

Abstract: Rudd and Whelan (2006) document evidence that the first-difference of inflation negatively depends on its own lag, and highlight that sticky price models emphasizing the role of firms’ forward-looking pricing behavior cannot be reconciled with the stylized fact. We show that the puzzling negative dependence of the first-difference of inflation on its own lag is consistent with the prediction of the hybrid New Keynesian Phillips Curve (NKPC) with lags of inflation, whereas, as it is argued, it is inconsistent with the prediction of both the purely forward-looking NKPC and its hybrid variant with a lag of inflation. Our theoretical results show that the negative dependence appears only when firms’ forward-looking pricing behavior is relatively more important than backward-looking behavior in determining inflation dynamics.

Keywords: Inflation; Sticky price; Hybrid Phillips Curve; Forward-looking; Backward-looking indexation; Lags of inflation (search for similar items in EconPapers)
JEL-codes: E31 (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecolet:v:156:y:2017:i:c:p:53-57

DOI: 10.1016/j.econlet.2017.04.018

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