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The Natural Rate of Inflation

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  • Engin Kara

Abstract

I identify the natural rate of inflation: the threshold where signal-to-noise crosses unity. Extending Lucas (1972), I show that when inflation falls below sectoral volatility, firms cannot distinguish aggregate from idiosyncratic shocks. Sticky-price firms rationally filter out competitor price movements, creating endogenous stability. When inflation exceeds the natural rate, filtering ceases, coordination increases, and inflation becomes self-reinforcing. Using six million UK micro-price observations, I estimatethis threshold at 1.9%. Crossing it triggers a regime shift: price dispersion falls 10%, inflation persistence jumps from near-zero to 0.44, and monetary policy loses traction. These findings validate 2% targets as the limit of self-correction.

Suggested Citation

  • Engin Kara, 2025. "The Natural Rate of Inflation," CESifo Working Paper Series 12306, CESifo.
    • Handle: RePEc:ces:ceswps:_12306
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    References listed on IDEAS

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    1. Pasten, Ernesto & Schoenle, Raphael, 2016. "Rational inattention, multi-product firms and the neutrality of money," Journal of Monetary Economics, Elsevier, vol. 80(C), pages 1-16.
    2. Ricardo Reis, 2006. "Inattentive Producers," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 73(3), pages 793-821.
    3. Richard Davies, 2021. "Prices and inflation in a pandemic - a micro data approach," CEP Covid-19 Analyses cepcovid-19-017, Centre for Economic Performance, LSE.
    4. Emi Nakamura & Jón Steinsson, 2010. "Monetary Non-neutrality in a Multisector Menu Cost Model," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 125(3), pages 961-1013.
    5. Charles F. Manski, 1993. "Identification of Endogenous Social Effects: The Reflection Problem," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 60(3), pages 531-542.
    6. A. Colin Cameron & Jonah B. Gelbach & Douglas L. Miller, 2011. "Robust Inference With Multiway Clustering," Journal of Business & Economic Statistics, Taylor & Francis Journals, vol. 29(2), pages 238-249, April.
    7. Lucas, Robert Jr., 1972. "Expectations and the neutrality of money," Journal of Economic Theory, Elsevier, vol. 4(2), pages 103-124, April.
    8. Braun, Robin & Miranda-Agrippino, Silvia & Saha, Tuli, 2025. "Measuring monetary policy in the UK: The UK monetary policy event-study database," Journal of Monetary Economics, Elsevier, vol. 149(C).
    9. Avinash Dixit, 1991. "Analytical Approximations in Models of Hysteresis," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 58(1), pages 141-151.
    10. Luca Gagliardone & Mark Gertler & Simone Lenzu & Joris Tielens, 2025. "Anatomy of the Phillips Curve: Micro Evidence and Macro Implications," American Economic Review, American Economic Association, vol. 115(11), pages 3941-3974, November.
    11. Olivier Coibion & Yuriy Gorodnichenko & Johannes Wieland, 2012. "The Optimal Inflation Rate in New Keynesian Models: Should Central Banks Raise Their Inflation Targets in Light of the Zero Lower Bound?," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 79(4), pages 1371-1406.
    12. Mary Amiti & Oleg Itskhoki & Jozef Konings, 2019. "International Shocks, Variable Markups, and Domestic Prices," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 86(6), pages 2356-2402.
    13. Mikhail Golosov & Robert E. Lucas Jr., 2007. "Menu Costs and Phillips Curves," Journal of Political Economy, University of Chicago Press, vol. 115(2), pages 171-199.
    14. Sims, Christopher A., 2003. "Implications of rational inattention," Journal of Monetary Economics, Elsevier, vol. 50(3), pages 665-690, April.
    15. Andrés Blanco, 2021. "Optimal Inflation Target in an Economy with Menu Costs and a Zero Lower Bound," American Economic Journal: Macroeconomics, American Economic Association, vol. 13(3), pages 108-141, July.
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    Keywords

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    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • D21 - Microeconomics - - Production and Organizations - - - Firm Behavior: Theory
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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