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Liquidity Traps, Prudential Policies, and International Spillovers

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  • Javier Bianchi
  • Louphou Coulibaly

Abstract

We investigate optimal monetary and macroprudential policies in an open economy with aggregate demand externalities and an occasionally binding zero lower bound constraint. Our analysis highlights that the optimal policy balances output stabilization and capital flow management. When macroprudential policy is available, monetary policy stabilizes the output gap. By contrast, when macroprudential policy is not available, monetary policy is used prudentially. However, contrary to a widespread view, raising the interest rate is not necessarily the optimal prudential policy. Finally, we show that international spillovers operate through the world real rate, but macroprudential policies provide insulation from the adverse effects of foreign policies.

Suggested Citation

  • Javier Bianchi & Louphou Coulibaly, 2022. "Liquidity Traps, Prudential Policies, and International Spillovers," NBER Working Papers 30038, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:30038
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    References listed on IDEAS

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    Cited by:

    1. Olivier Jeanne, 2021. "Currency Wars, Trade Wars, and Global Demand," NBER Working Papers 29603, National Bureau of Economic Research, Inc.
    2. Daeha Cho & Kwang Hwan & Sukjoon Kim, 2023. "The Paradox of Price Flexibility in an Open Economy," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 51, pages 370-392, December.
    3. Kollmann, Robert, 2021. "Liquidity traps in a world economy," Journal of Economic Dynamics and Control, Elsevier, vol. 132(C).
    4. Javier Bianchi & Guido Lorenzoni, 2021. "The Prudential Use of Capital Controls and Foreign Currency Reserves," NBER Working Papers 29476, National Bureau of Economic Research, Inc.
    5. Bengui, Julien & Bianchi, Javier, 2022. "Macroprudential policy with leakages," Journal of International Economics, Elsevier, vol. 139(C).
    6. Javier Bianchi, 2022. "The Research Agenda: Javier Bianchi on Financial Crises and Prudential Policies," EconomicDynamics Newsletter, Review of Economic Dynamics, vol. 23(1), April.
    7. Zhao, Hong, 2022. "On the impacts of trend inflation in an open economy," Journal of International Economics, Elsevier, vol. 138(C).

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    More about this item

    JEL classification:

    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • E23 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Production
    • E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E62 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Fiscal Policy; Modern Monetary Theory
    • F32 - International Economics - - International Finance - - - Current Account Adjustment; Short-term Capital Movements

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