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INFLATION IN THE G7: MIND THE GAP(S)?

Published online by Cambridge University Press:  19 December 2013

James Morley ,
Jeremy Piger  and
Robert Rasche
James Morley
Affiliation:
University of New South Wales
Jeremy Piger*
Affiliation:
University of Oregon
Robert Rasche
Affiliation:
Michigan State University
*
Address correspondence to: Jeremy Piger, Department of Economics, 1285 University of Oregon, Eugene, OR 97403, USA; e-mail: [email protected].
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Abstract

We investigate the importance of trend inflation and the real-activity gap in explaining inflation in G7 countries since 1960. Our analysis is based on a bivariate unobserved components model of inflation and unemployment in which inflation is decomposed into a stochastic trend and a transitory component. As in recent implementations of the New Keynesian Phillips Curve, it is the transitory component of inflation, or “inflation gap,” that is driven by the real-activity gap, which we measure as the deviation of unemployment from its natural rate. We find that both trend inflation and the inflation gap have been consistent and substantial determinants of inflation at business cycle horizons for all G7 countries since 1960. Also, the real-activity gap explains a large fraction of the variation in the inflation gap for each country. These results provide empirical support for the New Keynesian Phillips Curve augmented with trend inflation.

Keywords

Inflation PersistenceNatural RateNew Keynesian Phillips CurveTrend Inflation
Type
Articles
Information
Macroeconomic Dynamics , Volume 19 , Special Issue 4: Empirical Analysis of Business Cycles, Financial Markets, and Inflation: Essays in Honor of Charles Nelson , June 2015 , pp. 883 - 912
Copyright
Copyright © Cambridge University Press 2013 

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