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Un modelo de intervención cambiaria

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  • Johnson, Christian A.

    (Banco Central de Chile, División Estudios, Santiago, Chile)

Abstract

This article presents an intervention methodology to neutralize fluctuations not asocciated to Fundamentals. The mechanism is based on conditional heteroskedastidity model GARCH(1,1) for the nominal exchange rate, combined whit the at Risk concept. The simulation provides the authority with a tool to evaluate whether or not current exchange rate fluctuation canbe connected to fundamentals, or if an intervention required using international reserves to reduce exchange rate pressures. Because of the lower implicit volatilities, the intervention system hill help develop the domestic hedging market, and also increase investment and international trade.// Este artículo presenta una metedología de intervención cambiaria centrando la atención en la volatilidad del tipo de cambio nominal. Utilizando un enfoque de la valoración del riesgo (Value at Risk),junto con un modelo de volatilidad condicionada del tipo GARCH, se proyectan intervalos aceptables de variación de la moneda para obtener una señal de alerta temprana del grado de Intervención que la autoridad monetaria debe aplicar para suavizar los choques cambiarios. Con ello se impulsaría el desarrollo del mercado de cobertura, disminuyendo los costos de una menor volatividad implícita. La efectividad del método se fundamenta en la credibilidad que la autoridad posea en el mercado.

Suggested Citation

  • Johnson, Christian A., 2001. "Un modelo de intervención cambiaria," El Trimestre Económico, Fondo de Cultura Económica, vol. 68(271), pages 339-367, julio-sep.
  • Handle: RePEc:elt:journl:v:68:y:2001:i:271:p:339-367
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    Cited by:

    1. Leon, Jorge & Morera, Ana Patricia & Ramos, Welmer, 2001. "El Pass Through del Tipo de Cambio: Un Análisis para la Economía Costarricense de 1991 al 2001 [Exchange Rate Pass Throught: an Analysis for the Costarican Economy from 1991 to 2001]," MPRA Paper 44508, University Library of Munich, Germany, revised 2001.
    2. Christian A.Johnson, 2001. "Value at risk: teoría y aplicaciones," Estudios de Economia, University of Chile, Department of Economics, vol. 28(2 Year 20), pages 217-247, December.
    3. Castillo-Maldonado, Carlos Eduardo, 2008. "Intervención cambiaria en Guatemala: ¿Ha sido efectiva? [Foreign Exchange Market Intervention in Guatemala: Has it been Effective?]," MPRA Paper 79038, University Library of Munich, Germany.
    4. Pedauga Sánchez, Luis Enrique, 2003. "Modelo de intervención cambiaria para el caso venezolano [Exchange intervention model for Venezuelan]," MPRA Paper 35407, University Library of Munich, Germany.

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