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Dynamic Rational Inattention and the Phillips Curve

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  • Hassan Afrouzi
  • Choongryul Yang

Abstract

We develop a fast, tractable, and robust method for solving the transition path of dynamic rational inattention problems in linear-quadratic-Gaussian settings. As an application of our general framework, we develop an attention-driven theory of dynamic pricing in which the Phillips curve slope is endogenous to systematic aspects of monetary policy. In our model, when the monetary authority is more committed to stabilizing nominal variables, rationally inattentive firms pay less attention to changes in their input costs, which leads to a flatter Phillips curve and more anchored inflation expectations. This effect, however, is not symmetric. A more dovish monetary policy flattens the Phillips curve in the short-run but generates a steeper Phillips curve in the long-run. In a calibrated version of our general equilibrium model, we find that our mechanism quantifies a 75% decline in the slope of the Phillips curve in the post-Volcker period, relative to the period before it.

Suggested Citation

  • Hassan Afrouzi & Choongryul Yang, 2021. "Dynamic Rational Inattention and the Phillips Curve," CESifo Working Paper Series 8840, CESifo.
    • Handle: RePEc:ces:ceswps:_8840
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    References listed on IDEAS

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    1. Hassan Afrouzi & Spencer Yongwook Kwon & Augustin Landier & Yueran Ma & David Thesmar, 2020. "Overreaction and Working Memory," NBER Working Papers 27947, National Bureau of Economic Research, Inc.
    2. Hassan Afrouzi, 2024. "Strategic Inattention, Inflation Dynamics, and the Nonneutrality of Money," Journal of Political Economy, University of Chicago Press, vol. 132(10), pages 3378-3420.
    3. George-Marios Angeletos & Zhen Huo, 2021. "Myopia and Anchoring," American Economic Review, American Economic Association, vol. 111(4), pages 1166-1200, April.
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    Keywords

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    JEL classification:

    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations
    • E03 - Macroeconomics and Monetary Economics - - General - - - Behavioral Macroeconomics
    • 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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