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Foreign exchange intervention and financial stability

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  • Pierre-Richard Agénor
  • Timothy Jackson
  • Luiz Awazu Pereira da Silva

Abstract

This paper studies the effects of sterilized foreign exchange market intervention in a model with financial frictions and imperfect capital mobility. The central bank operates a managed float regime and issues sterilization bonds that are imperfect substitutes (as a result of economies of scope) to investment loans in bank portfolios. The model is parameterized and used to study the macroeconomic effects of, and policy responses to, capital inflows associated with a transitory shock to world interest rates. The results show that sterilized intervention can be expansionary through a bank portfolio effect and may increase volatility and financial stability risks. Full sterilization is optimal only when the bank portfolio effect is absent. The optimal degree of intervention is more aggressive when the central bank can choose simultaneously the degree of sterilization; in that sense, the instruments are complements. When the central bank's objective function depends on the cost of sterilization, and concerns with that cost are sufficiently high, intervention and sterilization can be substitutes---independently of whether exchange rate and financial stability considerations also matter.

Suggested Citation

  • Pierre-Richard Agénor & Timothy Jackson & Luiz Awazu Pereira da Silva, 2020. "Foreign exchange intervention and financial stability," BIS Working Papers 889, Bank for International Settlements.
    • Handle: RePEc:bis:biswps:889
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    2. Lama, Ruy & Medina, Juan Pablo, 2020. "Mundell meets Poole: Managing capital flows with multiple instruments in emerging economies," Journal of International Money and Finance, Elsevier, vol. 109(C).
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    4. Yildirim, Zekeriya, 2022. "Global financial risk, the risk-taking channel, and monetary policy in emerging markets," Economic Modelling, Elsevier, vol. 116(C).
    5. Haryo Kuncoro & Caroline Geetha & Fafurida Fafurida, 2024. "Central Bank Intervention and Exchange Rate Volatility in the Inflation-Targeting Regime," Economic Research Guardian, Weissberg Publishing, vol. 14(1), pages 2-15, June.

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    JEL classification:

    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics

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