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The Nonpuzzling Behavior of Median Inflation

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  • Laurence M. Ball
  • Sandeep Mazumder

Abstract

Economists are puzzled by the behavior of U.S. inflation since the Great Recession of 2008-2009, and many suggest that the Phillips curve relating inflation to unemployment has broken down. This paper argues that inflation behavior is easier to understand if we divide headline inflation into core and transitory components, and if core inflation is measured by the weighted median of industry inflation rates. This weighted median is less volatile than the traditional measure of core inflation, the inflation rate excluding food and energy prices, because it filters out large price changes in all industries. We illustrate the usefulness of the weighted median with a case study of inflation in 2017 and early 2018. We also show that a Phillips curve relating the weighted median to unemployment appears clearly in the data for 1985-2017, with no sign of a breakdown in 2008.

Suggested Citation

  • Laurence M. Ball & Sandeep Mazumder, 2019. "The Nonpuzzling Behavior of Median Inflation," NBER Working Papers 25512, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:25512
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    References listed on IDEAS

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    1. Olivier Coibion & Yuriy Gorodnichenko, 2015. "Is the Phillips Curve Alive and Well after All? Inflation Expectations and the Missing Disinflation," American Economic Journal: Macroeconomics, American Economic Association, vol. 7(1), pages 197-232, January.
    2. Laurence Ball & Sandeep Mazumder, 2011. "Inflation Dynamics and the Great Recession," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 42(1 (Spring), pages 337-405.
    3. Douglas O. Staiger & James H. Stock & Mark W. Watson, 1997. "How Precise Are Estimates of the Natural Rate of Unemployment?," NBER Chapters, in: Reducing Inflation: Motivation and Strategy, pages 195-246, National Bureau of Economic Research, Inc.
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    6. Olivier Blanchard, 2016. "The Phillips Curve: Back to the '60s?," American Economic Review, American Economic Association, vol. 106(5), pages 31-34, May.
    7. Theodore M. Crone & N. Neil K. Khettry & Loretta J. Mester & Jason A. Novak, 2013. "Core Measures of Inflation as Predictors of Total Inflation," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 45(2‐3), pages 505-519, March.
    8. Jim Dolmas, 2005. "Trimmed mean PCE inflation," Working Papers 0506, Federal Reserve Bank of Dallas.
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    More about this item

    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation

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