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Exchange Rate Policies at the Zero Lower Bound

Author

Listed:
  • Manuel Amador
  • Javier Bianchi
  • Luigi Bocola
  • Fabrizio Perri

Abstract

We study the problem of a monetary authority pursuing an exchange rate policy that is inconsistent with interest rate parity because of a binding zero lower bound constraint. The resulting violation in interest rate parity generates an inflow of capital that the monetary authority needs to absorb by accumulating foreign reserves. We show that these interventions by the monetary authority are costly, and we derive a simple measure of these costs: they are proportional to deviations from the covered interest parity (CIP) condition and the amount of accumulated foreign reserves. Our framework can account for the recent experiences of “safe-haven” currencies and the sign of their observed deviations from CIP.

Suggested Citation

  • Manuel Amador & Javier Bianchi & Luigi Bocola & Fabrizio Perri, 2020. "Exchange Rate Policies at the Zero Lower Bound," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 87(4), pages 1605-1645.
    • Handle: RePEc:oup:restud:v:87:y:2020:i:4:p:1605-1645.
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    More about this item

    Keywords

    Capital flows; CIP deviations; Currency pegs; Foreign exchange interventions; International reserves;
    All these keywords.

    JEL classification:

    • F31 - International Economics - - International Finance - - - Foreign Exchange
    • F32 - International Economics - - International Finance - - - Current Account Adjustment; Short-term Capital Movements
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics

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