IDEAS home Printed from https://ideas.repec.org/a/eee/ecmode/v147y2025ics0264999325000355.html
   My bibliography  Save this article

An interest rate rule following the natural rate of interest for optimal monetary policy

Author

Listed:
  • Suh, Jeong Eui

Abstract

The natural rate of interest (NRI) plays a critical role in maintaining stable and effective monetary policy. However, its unobservable nature has led most research to focus on quantitative methods for identifying its shifts, leaving theoretical approaches relatively underexplored. This study addresses this gap by examining how a central bank can implement optimal monetary policy within the New Keynesian framework by tracking NRI fluctuations after real shocks. The analysis demonstrates that when economic agents have strong confidence in policy consistency, the central bank can accurately detect NRI shifts within two periods, regardless of the type of real shocks. This finding implies that adopting an NRI-based interest rate rule may contribute to enhancing policy effectiveness.

Suggested Citation

  • Suh, Jeong Eui, 2025. "An interest rate rule following the natural rate of interest for optimal monetary policy," Economic Modelling, Elsevier, vol. 147(C).
    • Handle: RePEc:eee:ecmode:v:147:y:2025:i:c:s0264999325000355
    DOI: 10.1016/j.econmod.2025.107040
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0264999325000355
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.econmod.2025.107040?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to

    for a different version of it.

    References listed on IDEAS

    as
    1. Sushant Acharya & Edouard Challe & Keshav Dogra, 2023. "Optimal Monetary Policy According to HANK," American Economic Review, American Economic Association, vol. 113(7), pages 1741-1782, July.
    2. Marco Del Negro & Domenico Giannone & Marc P. Giannoni & Andrea Tambalotti, 2017. "Safety, Liquidity, and the Natural Rate of Interest," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 48(1 (Spring), pages 235-316.
    3. Obstfeld, Maurice, 2023. "Natural and Neutral Real Interest Rates: Past and Future," CEPR Discussion Papers 18658, C.E.P.R. Discussion Papers.
    4. Robert Barsky & Alejandro Justiniano & Leonardo Melosi, 2014. "The Natural Rate of Interest and Its Usefulness for Monetary Policy," American Economic Review, American Economic Association, vol. 104(5), pages 37-43, May.
    5. Holston, Kathryn & Laubach, Thomas & Williams, John C., 2017. "Measuring the natural rate of interest: International trends and determinants," Journal of International Economics, Elsevier, vol. 108(S1), pages 59-75.
    6. Matthew Canzoneri & Robert Cumby & Behzad Diba, 2015. "Monetary Policy and the Natural Rate of Interest," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 47(2-3), pages 383-414, March.
    7. 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.
    8. Gauti B. Eggertsson & Neil R. Mehrotra & Jacob A. Robbins, 2019. "A Model of Secular Stagnation: Theory and Quantitative Evaluation," American Economic Journal: Macroeconomics, American Economic Association, vol. 11(1), pages 1-48, January.
    9. Jung, Taehun & Teranishi, Yuki & Watanabe, Tsutomu, 2005. "Optimal Monetary Policy at the Zero-Interest-Rate Bound," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 37(5), pages 813-835, October.
    10. Gauti B. Eggertsson & Michael Woodford, 2003. "The Zero Bound on Interest Rates and Optimal Monetary Policy," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 34(1), pages 139-235.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Fiedler, Salomon & Gern, Klaus-Jürgen & Jannsen, Nils & Wolters, Maik H., 2019. "Growth prospects, the natural interest rate, and monetary policy," Economics - The Open-Access, Open-Assessment E-Journal (2007-2020), Kiel Institute for the World Economy (IfW Kiel), vol. 13, pages 1-34.
    2. Lansing, Kevin J., 2021. "Endogenous forecast switching near the zero lower bound," Journal of Monetary Economics, Elsevier, vol. 117(C), pages 153-169.
    3. Del Negro, Marco & Giannone, Domenico & Giannoni, Marc P. & Tambalotti, Andrea, 2019. "Global trends in interest rates," Journal of International Economics, Elsevier, vol. 118(C), pages 248-262.
    4. Sandra Daudignon & Oreste Tristani, 2022. "Monetary policy and the drifting natural rate of interest," Working Papers of Faculty of Economics and Business Administration, Ghent University, Belgium 22/1057, Ghent University, Faculty of Economics and Business Administration.
    5. Neri, Stefano & Gerali, Andrea, 2019. "Natural rates across the Atlantic," Journal of Macroeconomics, Elsevier, vol. 62(C).
    6. Philippe Andrade & Jordi Gali & Herve Le Bihan & Julien Matheron, 2019. "The Optimal Inflation Target and the Natural Rate of Interest," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 50(2 (Fall)), pages 173-255.
    7. Brand, Claus & Goy, Gavin W & Lemke, Wolfgang, 2020. "Natural rate chimera and bond pricing reality," VfS Annual Conference 2020 (Virtual Conference): Gender Economics 224546, Verein für Socialpolitik / German Economic Association.
    8. Billi, Roberto & Galí, Jordi & Nakov, Anton, 2024. "Optimal monetary policy with r∗<0," Journal of Monetary Economics, Elsevier, vol. 142(C).
    9. Hess Chung & Etienne Gagnon & Taisuke Nakata & Matthias Paustian & Bernd Schlusche & James Trevino & Diego Vilán & Wei Zheng, 2020. "Monetary Policy Options at the Effective Lower Bound: Assessing the Federal Reserve’s Current Policy Toolkit," CARF F-Series CARF-F-483, Center for Advanced Research in Finance, Faculty of Economics, The University of Tokyo.
    10. Michael T. Kiley, 2018. "Quantitative Easing and the ‘New Normal’ in Monetary Policy," Manchester School, University of Manchester, vol. 86(S1), pages 21-49, September.
    11. Fu, Buben & Wang, Bin, 2024. "Demographic change and natural interest rate of China," Finance Research Letters, Elsevier, vol. 59(C).
    12. Gauti B. Eggertsson & Sergey K. Egiev, 2024. "Liquidity Traps: A Unified Theory of the Great Depression and Great Recession," NBER Working Papers 33195, National Bureau of Economic Research, Inc.
    13. Michael T. Kiley & John M. Roberts, 2017. "Monetary Policy in a Low Interest Rate World," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 48(1 (Spring), pages 317-396.
    14. Nickel, Christiane & Kilponen, Juha & Moral-Benito, Enrique & Koester, Gerrit & Ciccarelli, Matteo & Enders, Almira & Holton, Sarah & Landau, Bettina & Venditti, Fabrizio & Bobeica, Elena & Brand, Cla, 2025. "A strategic view on the economic and inflation environment in the euro area," Occasional Paper Series 371, European Central Bank.
    15. José Dorich & Nicholas Labelle St-Pierre & Vadym Lepetyuk & Rhys R. Mendes, 2018. "Could a higher inflation target enhance macroeconomic stability?," Canadian Journal of Economics, Canadian Economics Association, vol. 51(3), pages 1029-1055, August.
    16. Brand, Claus & Mazelis, Falk, 2019. "Taylor-rule consistent estimates of the natural rate of interest," Working Paper Series 2257, European Central Bank.
    17. Marx, Magali & Mojon, Benoît & Velde, François R., 2021. "Why have interest rates fallen far below the return on capital?," Journal of Monetary Economics, Elsevier, vol. 124(S), pages 57-76.
    18. 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).
    19. Wang, Bin & Kwan, Yum K., 2021. "Measuring the natural rates of interest of OECD and BRICS economies: A time varying perspective," Journal of International Money and Finance, Elsevier, vol. 112(C).
    20. Hasui, Kohei & Kobayashi, Teruyoshi & Sugo, Tomohiro, 2021. "Optimal irreversible monetary policy," European Economic Review, Elsevier, vol. 134(C).

    More about this item

    Keywords

    ;
    ;
    ;

    JEL classification:

    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:ecmode:v:147:y:2025:i:c:s0264999325000355. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/inca/30411 .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.