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Idiosyncratic income risk and aggregate fluctuations

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Abstract

We study the role of idiosyncratic income risk for aggregate fluctuations within a simple heterogeneous households framework. We show that the presence of idiosyncratic income shocks affects the economy's response to an aggregate shock even in the absence of binding borrowing constraints and/or cyclical income risk. Their impact can be captured by a consumption-weighted average of the changes in consumption risk generated by an aggregate shock. We apply this framework to two example economies -an endowment economy and a New Keynesian economy- and show that under plausible calibrations the impact of idiosyncratic income risk on aggregate fluctuations is quantitatively small, since most of the changes in consumption risk are concentrated among poorer (low consumption) households.

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  • Davide Debortoli & Jordi Galí, 2021. "Idiosyncratic income risk and aggregate fluctuations," Economics Working Papers 1796, Department of Economics and Business, Universitat Pompeu Fabra, revised Jun 2023.
    • Handle: RePEc:upf:upfgen:1796
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    Cited by:

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    2. Takahashi, Yuta & Takayama, Naoki, 2022. "Hidden Stagflation," Discussion Paper Series 733, Institute of Economic Research, Hitotsubashi University.
    3. Stéphane Dupraz, 2023. "The Dynamic IS Curve when there is both Investment and Savings," Working papers 905, Banque de France.
    4. Luzie Thiel, 2023. "Monetary Policy and Inequality: A Two-way Relation," MAGKS Papers on Economics 202304, Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung).

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    More about this item

    Keywords

    heterogeneous agents; economic fluctuations; aggregate shocks; idiosyncratic shocks; monetary policy; HANK models.;
    All these keywords.

    JEL classification:

    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General

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