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Phillips Curve Instability and Optimal Monetary Policy

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  • TROY DAVIG

Abstract

Empirical evidence suggests the Phillips curve has flattened over the past few decades. To capture this feature of the data, I develop a framework where firms face a changing cost of price adjustment, which produces a Phillips curve with a slope coefficient that varies over time. To evaluate the implications for monetary policy, I construct the utility‐based welfare criterion where the relative weight on output gap deviations changes synchronously with the slope of the Phillips curve. The systematic component of the rule that implements optimal policy is constant under discretion and commitment.

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  • Troy Davig, 2016. "Phillips Curve Instability and Optimal Monetary Policy," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 48(1), pages 233-246, February.
    • Handle: RePEc:wly:jmoncb:v:48:y:2016:i:1:p:233-246
    DOI: 10.1111/jmcb.12296
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    Cited by:

    1. Jason Choi & Andrew Foerster, 2021. "Optimal Monetary Policy Regime Switches," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 42, pages 333-346, October.
    2. Marian Vavra, 2013. "Testing for linear and Markov switching DSGE models," Working and Discussion Papers WP 3/2013, Research Department, National Bank of Slovakia.
    3. Seonghoon Cho, 2016. "Sufficient Conditions for Determinacy in a Class of Markov-Switching Rational Expectations Models," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 21, pages 182-200, July.
    4. Troy Davig & Eric M. Leeper, 2009. "Reply to \"Generalizing the Taylor principle\": a comment," Research Working Paper RWP 09-09, Federal Reserve Bank of Kansas City.
    5. Gasteiger, Emanuel & Grimaud, Alex, 2023. "Price setting frequency and the Phillips curve," European Economic Review, Elsevier, vol. 158(C).
    6. Guido Bulligan & Eliana Viviano, 2017. "Has the wage Phillips curve changed in the euro area?," IZA Journal of Labor Policy, Springer;Forschungsinstitut zur Zukunft der Arbeit GmbH (IZA), vol. 6(1), pages 1-22, December.
    7. Troy Davig & Eric M. Leeper, 2010. "Generalizing the Taylor Principle: Reply," American Economic Review, American Economic Association, vol. 100(1), pages 618-624, March.
    8. Jisheng Yang, 2010. "Expectation, excess liquidity and inflation dynamics in China," Frontiers of Economics in China, Springer;Higher Education Press, vol. 5(3), pages 412-429, September.
    9. Nicholas Apergis, 2024. "Eurozone inflation: fresh projections from global factors," Economics and Business Letters, Oviedo University Press, vol. 13(1), pages 39-47.
    10. Filippo Occhino, 2019. "The Flattening of the Phillips Curve: Policy Implications Depend on the Cause," Economic Commentary, Federal Reserve Bank of Cleveland, issue July.
    11. Wagner, Joel & Schlanger, Tudor & Zhang, Yang, 2023. "A horse race of alternative monetary policy regimes under bounded rationality," Journal of Economic Dynamics and Control, Elsevier, vol. 154(C).
    12. Aristidou, Chrystalleni, 2018. "The meta-Phillips Curve: Modelling U.S. inflation in the presence of regime change," Journal of Macroeconomics, Elsevier, vol. 57(C), pages 367-379.

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