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Deep Habits in the New Keynesian Phillips Curve

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  • Thomas A. Lubik
  • Wing Leong Teo

Abstract

We derive and estimate a New Keynesian Phillips curve (NKPC) in a model where consumers are assumed to have deep habits. Habits are deep in the sense that they apply to individual consumption goods instead of aggregate consumption. This alters the NKPC in a fundamental manner as it introduces expected and contemporaneous consumption growth as well as the expected marginal value of future demand as additional driving forces for inflation dynamics. We construct the driving process in the deep habits NKPC by using the model s optimality conditions to impute time series for unobservable variables. The resulting series is considerably more volatile than unit labor cost. General Methods of Moments (GMM) estimation of the NKPC shows an improved fit and a much lower degree of indexation than in the standard NKPC. Our analysis also reveals that the crucial parameters for the performance of the deep habit NKPC are the habit parameter and the substitution elasticity between differentiated products. The results are broadly robust to alternative specifications.

Suggested Citation

  • Thomas A. Lubik & Wing Leong Teo, 2012. "Deep Habits in the New Keynesian Phillips Curve," CAMA Working Papers 2012-09, Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University.
    • Handle: RePEc:een:camaaa:2012-09
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    File URL: https://cama.crawford.anu.edu.au/sites/default/files/publication/cama_crawford_anu_edu_au/2021-06/9_lubik_teo_2012.pdf
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    Citations

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    Cited by:

    1. Havranek, Tomas & Rusnak, Marek & Sokolova, Anna, 2017. "Habit formation in consumption: A meta-analysis," European Economic Review, Elsevier, vol. 95(C), pages 142-167.
    2. Sedjro Aaron Alovokpinhou & Christopher Malikane & Tshepo Mokoka, 2022. "Inventory dynamics and endogenous persistence in a new Keynesian model," Applied Economics, Taylor & Francis Journals, vol. 54(17), pages 1957-1973, April.
    3. Givens, Gregory E., 2016. "On the gains from monetary policy commitment under deep habits," Journal of Macroeconomics, Elsevier, vol. 50(C), pages 19-36.
    4. Aloui, Rym, 2024. "Habit formation and the government spending multiplier," Economic Modelling, Elsevier, vol. 132(C).
    5. Jacob, Punnoose & Uusküla, Lenno, 2019. "Deep habits and exchange rate pass-through," Journal of Economic Dynamics and Control, Elsevier, vol. 105(C), pages 67-89.
    6. Leith, Campbell & Moldovan, Ioana & Rossi, Raffaele, 2015. "Monetary and fiscal policy under deep habits," Journal of Economic Dynamics and Control, Elsevier, vol. 52(C), pages 55-74.
    7. Givens, Gregory, 2013. "Deep or aggregate habit formation? Evidence from a new-Keynesian business cycle model," MPRA Paper 45204, University Library of Munich, Germany.
    8. Ambrocio, Gene, 2020. "Inflationary household uncertainty shocks," Bank of Finland Research Discussion Papers 5/2020, Bank of Finland.
    9. Ambrocio, Gene, 2020. "Inflationary household uncertainty shocks," Research Discussion Papers 5/2020, Bank of Finland.
    10. Dunbar, Kwamie & Owusu-Amoako, Johnson, 2023. "Predicting inflation expectations: A habit-based explanation under hedging," International Review of Financial Analysis, Elsevier, vol. 89(C).
    11. Krogh, Tord S., 2015. "Macro frictions and theoretical identification of the New Keynesian Phillips curve," Journal of Macroeconomics, Elsevier, vol. 43(C), pages 191-204.
    12. Okano, Mitsuhiro, 2025. "Optimal monetary policy in a two-country New Keynesian model with deep consumption habits," Macroeconomic Dynamics, Cambridge University Press, vol. 29, pages 1-1, January.

    More about this item

    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles

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