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La reducción del riesgo cambiario en los préstamos en divisas

Author

Listed:
  • Lozano Gutiérrez, Ma. Carmen

    (Universidad Politécnica de Cartagena)

  • Fuentes Martín, Federico

    (Universidad Politécnica de Cartagena)

Abstract

This paper presents a method of selecting several currency cocktails (synthetic currency baskets) to be used in commercial and financial transactions with no EMU countries assuming a minimum exchange rate risk. The method of procedure in selecting synthetic currency baskets is based on work from Markowitz model of portfolio selection and Soenen formation of functional currency areas. On these models we have designed a methodology of our own wich establish that exchange risk reductions in dependent on rentability variation of each currency in the cocktail and on correlations among currencies composing such portfolio. Thus, according as variability and correlation coefficients are going down, diversification of exchange rate risk in the currency composition is greater. The pre-eminence of a synthetic currency basket over a institutional currency basket in reducing exchange risk have been empirical proved. Through empirical studies we have found and optimal currencys cocktail and gave evidence about homogeneous results between our model and a section portfolio one based on multivariate analysis technique. A multicurrency loan simulation transformed into a synthetic currency basket (using the methode we propose in the present article) will justify the soundness of this methodology.// En este artículo presentamos un método de selección de combinaciones de divisas (canastas sintéticas de divisas) con las cuales referenciar las operaciones comerciales y financieras con países de fuera de la Unión Monetaria Europea (UME), asumiendo el menor riesgo cambiario posible. Para el desarrollo de la técnica de selección de canastas sintéticas de divisas, nos basamos en el modelo teórico de selección de carteras de Markowitz, complementando con la metodología de terminación de áreas de divisas de Soenen. Sobre estos modelos se ha elaborado una metodología propia, según la cual la reducción del riesgo cambiario dependerá de la variabilidad en la rentabilidad de cada divisa de la cartera y la correlación entre todas las divisas que componen dicha cartera. Así, a menor variabilidad y menor correlación, mayor potencial de diversificación del riego tendrá la Unión. Se ha probado empíricamente la superioridad de las canastas sintéticas elaboradas frente a la canasta institucionalizada en al reducción de riesgos cambiarios. Por medio de una investigación empírica determinamos el tamaño óptimo de la canasta, y comprobamos la similitud en los resultados obtenidos entre el modelo que proponemos y un modelo de selección basado en técnicas de análisis multivariante. Una simulación de préstamo en cláusula multidivisas, referenciado en una canasta sintética de divisas (obtenida mediante la técnica desarrollada en el presente trabajo), será le comprobación empírica mostrada respecto a la validez de la técnica.

Suggested Citation

  • Lozano Gutiérrez, Ma. Carmen & Fuentes Martín, Federico, 2004. "La reducción del riesgo cambiario en los préstamos en divisas," El Trimestre Económico, Fondo de Cultura Económica, vol. 0(282), pages 389-415, abril-jun.
  • Handle: RePEc:elt:journl:v:71:y:2004:i:282:p:389-415
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    More about this item

    Keywords

    riesgo cambiario; canasta sintética de divisas; préstamo de divisas;
    All these keywords.

    JEL classification:

    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets

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