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The Portfolio Channel of Capital Flows and Foreign Exchange Intervention in A Small Open Economy

Author

Listed:
  • Carlos Montoro

    (Banco Central de Reserva del Perú)

  • Marco Ortiz

    (Universidad del Pacífico)

Abstract

In this paper we extend a new Keynesian small open economy model to include risk-averse FX dealers and FX intervention by the monetary authority. The former ingredients generate deviations from the uncovered interest parity (UIP) condition. More precisely, in this setup portfolio decisions of the dealers add endogenously a time variant risk-premium element to the traditional UIP that depends on FX intervention by the central bank and FX orders by foreign investors. We analyse the effectiveness of different strategies of FX intervention (e.g., unanticipated operations or via a pre-announced rule) to affect the volatility of the exchange rate and the transmission mechanism of the interest rate. Our findings are as follows: (i) FX intervention has a strong interaction with monetary policy in general equilibrium; (ii) FX intervention rules can have stronger stabilisation power than discretion in response to shocks because they exploit the expectations channel; (iii) there are some trade-offs in the use of FX intervention, since it can help to isolate the economy from external financial shocks, but it prevents some necessary adjustments on the exchange rate as a response to nominal and real external shocks; and (iv) the interaction between the portfolio balance channel and current account dynamics reduces the presence of a explosive response of exchange rate volatility, generating more stable equilibria.

Suggested Citation

  • Carlos Montoro & Marco Ortiz, 2020. "The Portfolio Channel of Capital Flows and Foreign Exchange Intervention in A Small Open Economy," Working Papers 168, Peruvian Economic Association.
    • Handle: RePEc:apc:wpaper:168
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    JEL classification:

    • E4 - Macroeconomics and Monetary Economics - - Money and Interest Rates
    • E5 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit
    • F3 - International Economics - - International Finance
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets

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