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Precautionary saving and un-anchored expectations

Author

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  • Grimaud, Alex
Abstract
This paper investigates monetary policy in a heterogeneous agent new Keynesian (HANK) model where agents face idiosyncratic income risk and use adaptive learning in order to form their expectations. Households experience different histories and observe different idiosyncratic variables. This gives rise to idiosyncratic learning processes, which naturally implies the existence of heterogeneous expectations. In HANK models, supply shocks generate precautionary saving. The learning setup amplifies this effect and can result in long-lasting disinflationary traps. Dovish Taylor rules focused on closing the output gap dampen the learning effects. Price level targeting improves the inflation and output stabilization trade-off by better anchoring expectations.

Suggested Citation

  • Grimaud, Alex, 2021. "Precautionary saving and un-anchored expectations," MPRA Paper 110651, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:110651
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    More about this item

    Keywords

    Adaptive learning; precautionary saving; restricted perception equilibrium heterogeneous expectations; heterogeneous agents;
    All these keywords.

    JEL classification:

    • E25 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Aggregate Factor Income Distribution
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy

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