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Teorías de paridad y valuación de dos monedas con descuento de flujos mediante lógica borrosa / Parity Theories and Two Currencies Valuation with Discounted Cash Flow using Fuzzy Logic

Author

Listed:
  • Milanesi, Gastón S.

    (Departamento Ciencias de la Administración, Universidad Nacional del Sur)

  • Weins, Germán

    (Instituto Universitario Escuela Argentina de Negocios, Buenos Aires, Argentina)

  • Pequeño, Daniel

    (Instituto Universitario Escuela Argentina de Negocios, Buenos Aires, Argentina)

Abstract

El modelo descuento de flujos de fondos debe incorporar, en sistemas económicos emergentes, un marco conceptual para el tratamiento de la inflación y valuación en dos monedas. El punto de partida son las teorías de paridad en los tipos de interés, poder de compra y efecto Fisher, añadiendo lógica borrosa para proyectar variables inciertas: tasas de interés, inflación, tipo de cambio y cantidad de producción siendo este uno de los principales aportes de este artículo. Además el trabajo adaptó las ecuaciones del modelo para planillas de cálculo dentro del entorno de MatLab® mediante matrices para números borrosos. El trabajo se estructura de la siguiente manera: se desarrollan las teorías de paridad y las ecuaciones del modelo en el marco de la lógica borrosa. Su funcionamiento es ilustrado con un caso de una empresa radicada en una economía emergente e inflacionaria como Argentina utilizando planillas de cálculo. Seguidamente es explicada la programación en MatLab®, adaptando los números borrosos mediante matrices y tensores. Finalmente, los resultados obtenidos demostraron la consistencia de las teorías de la paridad, incorporando lógica borrosa para el tratamiento de la incertidumbre, en el marco de un modelo integral de descuento de flujos de fondos de dos monedas. / The discounted cash flow model must incorporate, in emerging economic systems, a conceptual framework to study inflation and its effects in the valuation of two currencies. The starting point are the Parity Theories and the Fisher Effect, adding fuzzy logic to project uncertainty variables: interest rate, inflation, exchange rates and production. This addition is one of the main contributions of this paper. Moreover, this paper adapted the model´s equation to be used with spreadsheets within the MatLab environment, using matrixes for fuzzy numbers. The structure of the paper is as follows: First, Parity Theories and model´s equation within a fuzzy logic framework are developed. Then, its operation is applied to a firm located in an emerging and inflationary economy like Argentina, using spreadsheets. Next, MatLab programming is explained, adapting fuzzy numbers by matrixes and tensors. Finally, the results obtained showed consistency with the Parity Theories, adding fuzzy logic to treat uncertainty, within a comprehensive framework of discounted cash flow model applied to two currencies.

Suggested Citation

  • Milanesi, Gastón S. & Weins, Germán & Pequeño, Daniel, 2020. "Teorías de paridad y valuación de dos monedas con descuento de flujos mediante lógica borrosa / Parity Theories and Two Currencies Valuation with Discounted Cash Flow using Fuzzy Logic," Estocástica: finanzas y riesgo, Departamento de Administración de la Universidad Autónoma Metropolitana Unidad Azcapotzalco, vol. 10(1), pages 27-76, enero-jun.
  • Handle: RePEc:sfr:efruam:v:10:y:2020:i:1:p:27-76
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    More about this item

    Keywords

    Teorías de paridad; Valuación; Matemáticas borrosas / Parity Theories; Valuation; Fuzzy Logic;
    All these keywords.

    JEL classification:

    • G30 - Financial Economics - - Corporate Finance and Governance - - - General
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill

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