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Some Implications of Learning for Price Stability

Author

Listed:
  • Stefano Eusepi
  • Marc P. Giannoni
  • Bruce Preston

Abstract

Survey data on expectations of a range of macroeconomic variables exhibit low-frequency drift. In a New Keynesian model consistent with these empirical properties, optimal policy in general delivers a positive inflation rate in the long run. Two special cases deliver classic outcomes under rational expectations: as the degree of low-frequency variation in beliefs goes to zero, the long-run inflation rate coincides with the inflation bias under optimal discretion; for non-zero low-frequency drift in beliefs, as households become highly patient valuing utility in any period equally, the optimal long-run inflation rate coincides with optimal commitment - price stability is optimal.

Suggested Citation

  • Stefano Eusepi & Marc P. Giannoni & Bruce Preston, 2017. "Some Implications of Learning for Price Stability," CAMA Working Papers 2017-08, Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University.
    • Handle: RePEc:een:camaaa:2017-08
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    File URL: https://crawford.anu.edu.au/sites/default/files/2025-08/8_2017_Eusepi_Giannoni_Preston.pdf
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    Cited by:

    1. Honkapohja, Seppo & McClung, Nigel, 2021. "On Robustness of Average Inflation Targeting," CEPR Discussion Papers 16001, C.E.P.R. Discussion Papers.
    2. André Marine Charlotte & Medina Espidio Sebastián, 2022. "Optimal Robust Monetary Policy in a Small Open Economy," Working Papers 2022-17, Banco de México.
    3. Dizioli, Allan & Wang, Hou, 2024. "How do adaptive learning expectations rationalize stronger monetary policy response in Brazil?," Latin American Journal of Central Banking (previously Monetaria), Elsevier, vol. 5(1).
    4. Svec, Justin & Tortorice, Daniel L., 2025. "Asserting independence: Optimal monetary policy when the central bank and political authority disagree," Journal of Macroeconomics, Elsevier, vol. 85(C).
    5. Mele, Antonio & Molnár, Krisztina & Santoro, Sergio, 2020. "On the perils of stabilizing prices when agents are learning," Journal of Monetary Economics, Elsevier, vol. 115(C), pages 339-353.
    6. Marine Charlotte André & Meixing Dai, 2018. "The limits to robust monetary policy in a small open economy with learning agents," Working Papers of BETA 2018-45, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
    7. Carlos Carvalho & Stefano Eusepi & Emanuel Moench & Bruce Preston, 2023. "Anchored Inflation Expectations," American Economic Journal: Macroeconomics, American Economic Association, vol. 15(1), pages 1-47, January.
    8. André, Marine Charlotte & Espidio, Sebastián Medina, 2024. "Optimal robust monetary policy in a small open emerging-market economy," Latin American Journal of Central Banking (previously Monetaria), Elsevier, vol. 5(4).

    More about this item

    Keywords

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    JEL classification:

    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations

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