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Spillovers and Spillbacks

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  • Sushant Acharya
  • Paolo A. Pesenti

Abstract

We study international monetary policy spillovers and spillbacks in a tractable two-country Heterogeneous Agent New Keynesian model. Relative to Representative Agent (RANK) models, our framework introduces a precautionary-savings channel, as households in both countries face uninsurable income risk, and a real-income channel, as households have heterogeneous marginal propensities to consume (MPC). While both channels amplify the size of spillovers/spillbacks, only precautionary savings can change their sign relative to RANK. Spillovers are likely to be larger in economies with higher fractions of high MPC households and more countercyclical income risk. Quantitatively, both channels amplify spillovers by 30-60% relative to RANK.

Suggested Citation

  • Sushant Acharya & Paolo A. Pesenti, 2024. "Spillovers and Spillbacks," NBER Working Papers 32245, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:32245
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    Cited by:

    1. Acharya, Sushant & Challe, Edouard, 2025. "Inequality and optimal monetary policy in the open economy," Journal of International Economics, Elsevier, vol. 155(C).
    2. Acharya, Sushant & Challe, Edouard, 2025. "Reprint of: Inequality and optimal monetary policy in the open economy," Journal of International Economics, Elsevier, vol. 156(C).

    More about this item

    JEL classification:

    • E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics
    • F42 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - International Policy Coordination and Transmission

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