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The natural real rate of interest and monetary policy: New evidence for the US

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  • Sheng Zhu
  • Ella Kavanagh
  • Jun Gao

Abstract

We propose a new method to estimate the unobservable natural real rate of interest in the United States (US). We begin by describing the natural rate in the New Keynesian model and then theoretically linking its evolution to both demand and supply‐side shocks hitting the US economy. Our results indicate that the technology shock dominated the shift in the natural real rate of interest during the sample period 1947–2017. In addition, we also examine whether the Taylor rule should be augmented for changes in the estimated natural rate. Our maximum likelihood estimation shows that the inclusion of the natural interest rate shift in the Taylor rule leads to significant improvement of the interest rate modelling.

Suggested Citation

  • Sheng Zhu & Ella Kavanagh & Jun Gao, 2024. "The natural real rate of interest and monetary policy: New evidence for the US," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 29(3), pages 3023-3039, July.
    • Handle: RePEc:wly:ijfiec:v:29:y:2024:i:3:p:3023-3039
    DOI: 10.1002/ijfe.2819
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