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The Optimal Inflation Target and the Natural Rate of Interest

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  • Andrade, Philippe
  • Galí, Jordi
  • Lebihan, Hervé
  • Matheron, Julien

Abstract

We study how changes in the value of the steady-state real interest rate affect the optimal inflation target, both in the U.S. and the euro area, using an estimated New Keynesian DSGE model that incorporates the zero (or effective) lower bound on the nominal interest rate. We find that this relation is downward sloping, but its slope is not necessarily one-for-one: increases in the optimal inflation rate are generally lower than declines in the steady-state real interest rate. Our approach allows us not only to assess the uncertainty surrounding the optimal inflation target, but also to determine the latter while taking into account the parameter uncertainty facing the policy maker, including uncertainty with regard to the determinants of the steady-state real interest rate. We find that in the currently empirically relevant region for the US as well as the euro area, the slope of the curve is close to -0.9. That finding is robust to allowing for parameter uncertainty.

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  • Andrade, Philippe & Galí, Jordi & Lebihan, Hervé & Matheron, Julien, 2018. "The Optimal Inflation Target and the Natural Rate of Interest," CEPR Discussion Papers 12723, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:12723
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    1. The Optimal Inflation Target and the Natural Rate of Interest
      by Christian Zimmermann in NEP-DGE blog on 2018-01-13 04:03:39

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    1. Günter Coenen & Carlos Montes-Galdón & Frank Smets, 2019. "Effects of State-Dependent Forward Guidance, Large-Scale Asset Purchases and Fiscal Stimulus in a Low-Interest-Rate Environment," Working Papers of Faculty of Economics and Business Administration, Ghent University, Belgium 19/983, Ghent University, Faculty of Economics and Business Administration.
    2. Antoine Lepetit, 2017. "The Optimal Inflation Rate with Discount Factor Heterogeneity," Working Papers hal-01527816, HAL.
    3. Davide Debortoli & Jordi Galí & Luca Gambetti, 2020. "On the Empirical (Ir)Relevance of the Zero Lower Bound Constraint," NBER Macroeconomics Annual, University of Chicago Press, vol. 34(1), pages 141-170.
    4. Janice C. Eberly & James H. Stock & Jonathan H. Wright, 2019. "The Federal Reserve’s Current Framework for Monetary Policy: A Review and Assessment," NBER Working Papers 26002, National Bureau of Economic Research, Inc.
    5. Christian Pfister & Jean-Guillaume Sahuc, 2020. "Unconventional monetary policies: A stock-taking exercise," Revue d'économie politique, Dalloz, vol. 130(2), pages 137-169.
    6. Stéphane Dupraz & Emi Nakamura & Jón Steinsson, 2019. "A Plucking Model of Business Cycles," NBER Working Papers 26351, National Bureau of Economic Research, Inc.
    7. Lis, Eliza & Nickel, Christiane & Papetti, Andrea, 2020. "Demographics and inflation in the euro area: a two-sector new Keynesian perspective," Working Paper Series 2382, European Central Bank.
    8. Aliaga Miranda, Augusto, 2020. "Monetary policy rules for an open economy with financial frictions: A Bayesian approach," Dynare Working Papers 62, CEPREMAP.
    9. Zhang, Ren & Martínez-García, Enrique & Wynne, Mark A. & Grossman, Valerie, 2021. "Ties that bind: Estimating the natural rate of interest for small open economies," Journal of International Money and Finance, Elsevier, vol. 113(C).
    10. Brand, Claus & Bielecki, Marcin & Penalver, Adrian, 2018. "The natural rate of interest: estimates, drivers, and challenges to monetary policy JEL Classification: E52, E43," Occasional Paper Series 217, European Central Bank.
    11. Jean-Philippe Bouchaud & Stanislao Gualdi & Marco Tarzia & Francesco Zamponi, 2018. "Optimal inflation target: insights from an agent-based model," Post-Print hal-01768441, HAL.
    12. Lhuillier, Jean-Paul & Schoenle, Raphael, 2019. "Raising the Inflation Target: How Much Extra Room Does It Really Give?," CEPR Discussion Papers 14142, C.E.P.R. Discussion Papers.
    13. Tomohide Mineyama & Wataru Hirata & Kenji Nishizaki, 2019. "Inflation and Social Welfare in a New Keynesian Model: The Case of Japan and the U.S," Bank of Japan Working Paper Series 19-E-10, Bank of Japan.
    14. Alfredo García-Hiernaux & María T. González-Pérez & David E. Guerrero, 2020. "Eurozone prices: a tale of convergence and divergence," Working Papers 2010, Banco de España;Working Papers Homepage.
    15. Sheremirov, Viacheslav, 2020. "Price dispersion and inflation: New facts and theoretical implications," Journal of Monetary Economics, Elsevier, vol. 114(C), pages 59-70.
    16. Koeda, Junko, 2019. "Macroeconomic effects of quantitative and qualitative monetary easing measures," Journal of the Japanese and International Economies, Elsevier, vol. 52(C), pages 121-141.
    17. Bouchaud, Jean-Philippe & Gualdi, Stanislao & Tarzia, Marco & Zamponi, Francesco, 2018. "Optimal inflation target: Insights from an agent-based model," Economics - The Open-Access, Open-Assessment E-Journal, Kiel Institute for the World Economy (IfW), vol. 12, pages 1-27.

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    More about this item

    Keywords

    effective lower bound; inflation target;

    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

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