What a puzzle! Unravelling why UK Phillips curves were unstable

The UK relationship between nominal wage inflation and the unemployment rate is unstable. Over sub-periods of the last 160 years of turbulent data, Phillips curve slopes range from strongly negative, slightly negative, flat, slightly positive and strongly positive. Our constant-parameter congruent m...

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Main Authors: Castle, J, Hendry, D
Format: Journal article
Language:English
Published: Wiley 2024
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author Castle, J
Hendry, D
author_facet Castle, J
Hendry, D
author_sort Castle, J
collection OXFORD
description The UK relationship between nominal wage inflation and the unemployment rate is unstable. Over sub-periods of the last 160 years of turbulent data, Phillips curve slopes range from strongly negative, slightly negative, flat, slightly positive and strongly positive. Our constant-parameter congruent model of real wages explains these instabilities, yet also implies a constant negative relationship between nominal wage inflation and the unemployment rate when corrected by its regressors. Disentangling these effects reveals that structural breaks in the real-wage model's variables do not explain the instabilities, which instead occur during sub-periods when some of its explanatory variables are insignificant.
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spelling oxford-uuid:881dde7a-fa39-41a2-8b42-9aaedf1d43842024-07-24T10:11:36ZWhat a puzzle! Unravelling why UK Phillips curves were unstableJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:881dde7a-fa39-41a2-8b42-9aaedf1d4384EnglishSymplectic ElementsWiley2024Castle, JHendry, DThe UK relationship between nominal wage inflation and the unemployment rate is unstable. Over sub-periods of the last 160 years of turbulent data, Phillips curve slopes range from strongly negative, slightly negative, flat, slightly positive and strongly positive. Our constant-parameter congruent model of real wages explains these instabilities, yet also implies a constant negative relationship between nominal wage inflation and the unemployment rate when corrected by its regressors. Disentangling these effects reveals that structural breaks in the real-wage model's variables do not explain the instabilities, which instead occur during sub-periods when some of its explanatory variables are insignificant.
spellingShingle Castle, J
Hendry, D
What a puzzle! Unravelling why UK Phillips curves were unstable
title What a puzzle! Unravelling why UK Phillips curves were unstable
title_full What a puzzle! Unravelling why UK Phillips curves were unstable
title_fullStr What a puzzle! Unravelling why UK Phillips curves were unstable
title_full_unstemmed What a puzzle! Unravelling why UK Phillips curves were unstable
title_short What a puzzle! Unravelling why UK Phillips curves were unstable
title_sort what a puzzle unravelling why uk phillips curves were unstable
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