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The New Keynesian Transmission Mechanism: A Heterogeneous-Agent Perspective

Author

Listed:
  • Tobias Broer

    (PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, PJSE - Paris Jourdan Sciences Economiques - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement)

  • Niels-Jakob Harbo Hansen

    (International Monetary Fund)

  • Per Krusell

    (IIES - Institute for International Economic Studies, CEPR - Center for Economic Policy Research)

  • Erik Öberg

    (Uppsala University, UCLS - Uppsala Center for Labor Studies)

Abstract
We present a tractable heterogeneous-agent version of the New Keynesian model that allows us to study the interaction between inequality and monetary policy. Though formulated as a precautionary-saving model à la Huggett–Aiyagari, its reduced form is a two-agent model with a highly concentrated wealth distribution. When prices are sticky and wages flexible, as in the textbook representative-agent model, monetary policy affects the distribution of consumption, but has no effect on output as workers choose not to change their hours worked in response to wage movements. This highlights a transmission mechanism of the textbook model that we find implausible: in response to a monetary stimulus, the representative worker's labor supply is greatly affected by the profits she receives. First, the lower profits induced by higher wages raise labor supply through a wealth effect and, secondly, the mere presence of profits reduces the negative income effect of a wage rise. When wages are rigid, in contrast, our model exhibits plausible responses of output and hours worked to monetary policy shocks.

Suggested Citation

  • Tobias Broer & Niels-Jakob Harbo Hansen & Per Krusell & Erik Öberg, 2020. "The New Keynesian Transmission Mechanism: A Heterogeneous-Agent Perspective," PSE-Ecole d'économie de Paris (Postprint) halshs-03058767, HAL.
    • Handle: RePEc:hal:pseptp:halshs-03058767
    DOI: 10.1093/restud/rdy060
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    References listed on IDEAS

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    More about this item

    Keywords

    Monetary policy; HANK; Heterogeneous agents;
    All these keywords.

    JEL classification:

    • E00 - Macroeconomics and Monetary Economics - - General - - - General
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles

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