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Overborrowing and Systemic Externalities in the Business Cycle Under Imperfect Information

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  • Juan Herreño
  • Carlos Rondón-Moreno

Abstract

We study the interaction between imperfect information and financial frictions and its role in driving financial crises in small open economies. We use a model where households observe income growth but do not perceive whether the underlying shocks are permanent or transitory and borrowing is subject to a collateral constraint. The optimal macroprudential policy helps stabilize the economy by taxing debt procyclically. We show that the combination of imperfect information and borrowing constraints is a significant source of economic instability. The optimal tax under these conditions is six times larger than the tax in the perfect information limit.

Suggested Citation

  • Juan Herreño & Carlos Rondón-Moreno, 2022. "Overborrowing and Systemic Externalities in the Business Cycle Under Imperfect Information," Working Papers Central Bank of Chile 940, Central Bank of Chile.
    • Handle: RePEc:chb:bcchwp:940
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    References listed on IDEAS

    as
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    More about this item

    JEL classification:

    • D62 - Microeconomics - - Welfare Economics - - - Externalities
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • F32 - International Economics - - International Finance - - - Current Account Adjustment; Short-term Capital Movements
    • F38 - International Economics - - International Finance - - - International Financial Policy: Financial Transactions Tax; Capital Controls
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics

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