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Inmunización del riesgo de crédito de un bono soberano en un ambiente de ingreso fiscal volátil: el caso de un bono mexicano denominado en dólares de Estados Unidos / Sovereign Bond’s Credit Risk Immunization in a Tax Income Volatility Environment: The Case of a USD Denominated Mexican Bond

Author

Listed:
  • Cruz aké, Salvador

    (Instituto Politécnico Nacional, Escuela Siperior de Economía)

  • Venegas Martínez, Francisco

    (Instituto Politécnico Nacional, Escuela Siperior de Economía)

  • Cabrera Llanos, Agustín Ignacio

    (Instituto Politécnico Nacional, UPIBI)

Abstract

En este trabajo se utiliza el modelo de Merton (1976) de valuación de opciones y el modelo de volatilidad estocástica Heston-Nandi (2000) cuando el activo subyacente sigue un proceso de difusión con saltos para calcular las probabilidades mensuales de incumplimiento de un bono cuyo emisor tiene ingresos inciertos con alta volatilidad en la recaudación de impuestos. En particular se ilustra el caso de un bono soberano emitido por el gobierno mexicano en dólares americanos (para asegurar la existencia de riesgo de incumplimiento). La metodología propuesta incorpora los conceptos de: apalancamiento previo, capacidad de generación de ingresos, gastos no recurrentes, plazo y tamaño del préstamo (tradicionalmente usados en el cálculo de probabilidades de incumplimiento), lo que provee una metodología alternativa para el cálculo a priori de probabilidades de incumplimiento. / In this paper we use Merton’s (1976) jump diffusion model and Heston-Nandi stochastic volatility model (2000) for pricing options when the underlying asset is driven by a mixed diffusion-jump process or GARCH volatility process to compute the monthly default probabilities of a bond issuer whose income is uncertain with high volatility in tax collection. In particular, we analize the case of a sovereign bond issued by the Mexican government in United States Dollars (to ensure the existence of default risk). The proposed methodology is based on concepts such as: previous leverage, income generation, non-recurring expenses, term and loan size (traditionally used in the calculation of probabilities of default), which provides an alternative methodology for computing a priori default probabilities.

Suggested Citation

  • Cruz aké, Salvador & Venegas Martínez, Francisco & Cabrera Llanos, Agustín Ignacio, 2012. "Inmunización del riesgo de crédito de un bono soberano en un ambiente de ingreso fiscal volátil: el caso de un bono mexicano denominado en dólares de Estados Unidos / Sovereign Bond’s Credit Risk Immu," Estocástica: finanzas y riesgo, Departamento de Administración de la Universidad Autónoma Metropolitana Unidad Azcapotzalco, vol. 2(2), pages 147-173, julio-dic.
  • Handle: RePEc:sfr:efruam:v:2:y:2012:i:2:p:147-173
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    More about this item

    Keywords

    Probabilidades de incumplimiento; Inmunización crediticia; Swaps de incumplimiento de crédito / Default Probability; Credit Risk Immunization; Credit Default Swap;
    All these keywords.

    JEL classification:

    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill
    • F34 - International Economics - - International Finance - - - International Lending and Debt Problems
    • G13 - Financial Economics - - General Financial Markets - - - Contingent Pricing; Futures Pricing

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