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How the use of Markov-Switching Sharpe Ratio can improve Mexican Pension Funds Investment Decisions / Cómo el uso de Razones de Sharpe cambiantes según un proceso de Markov puede mejorar las decisiones de inversión de los portafolios de pensiones mexicanos

Author

Listed:
  • De la Torre Torres, Oscar Valdemar

    (Facultad de Contaduria y Ciencias Administrativas, Universidad Michoacana de San Nicolás de Hidalgo, México)

  • Santillán Salgado, Roberto Joaquín

    (EGADE Business School, Tecnológico de Monterrey, Campus Monterrey, México)

  • López Herrera, Francisco

    (Facultad de Contaduría y Administración, Universidad Nacional Autónoma de México, México.)

Abstract

Towards the end of the 20th century, as part of the encompassing structural reforms that modernized the Mexican economy after decades of an obsolete imports-substitution model, overregulated economic sectors, and state-controlled productive sectors, the creation of an individual savings account pension system to replace the “pay-as-you-go” anachronic pension system prevalent since 1943, was necessary given the country’s demographic trends. The analysis presented in this paper uses a Markov-switching model to obtain the Sharpe ratio of different SIEFOREs portfolios for different subperiods and volatility regimes (normal and crisis). The results confirm that not all SIEFOREs are good (or bad) performers all the time. This evidence suggests that awareness of market conditions conveys information that can support rational decisions about when to change savings from SIEFOREs that are good performers during normal times to good performers during crisis periods. While these are preliminary findings, they represent a stating point for further analyses that should contribute to improved savers'decisions. / Hacia finales del siglo XX, como parte de las reformas estructurales que modernizaron la economía mexicana después de decenios de un modelo obsoleto de sustitución de importaciones, de sectores económicos sobre-regulados y sectores productivos controlados por el Estado, la creación de un sistema de cuentas de ahorro individual para reemplazar el sistema de pensiones “pay-as-you-go” prevalente desde 1943, resultó esencial en vista de las tendencias demográficas del país. El análisis presentado en este documento hace uso de un modelo Markov-Swit-ching para obtener la razón Sharpe de diferentes portafolios de SIEFOREs, para diferentes subperíodos y regímenes de volatilidad (normal y crisis). Los resultados confirman que no todas las SIEFOREs se desempeñan bien (o mal) todo el tiempo. Esta evidencia sugiere que el conocimiento de las condiciones del mercado proporciona información que puede sustentar decisiones racionales sobre el momento adecuado para cambiar los ahorros de las SIEFORES que ofrecen buenos rendimientos durante tiempos normales a las que ofrecen buenos resultados durante períodos de crisis. Si bien se trata de hallazgos preliminares, abren la puerta a nuevos análisis que deberían contribuir a mejorar las decisión que toman los ahorradores.

Suggested Citation

  • De la Torre Torres, Oscar Valdemar & Santillán Salgado, Roberto Joaquín & López Herrera, Francisco, 2021. "How the use of Markov-Switching Sharpe Ratio can improve Mexican Pension Funds Investment Decisions / Cómo el uso de Razones de Sharpe cambiantes según un proceso de Markov puede mejorar las decisione," Estocástica: finanzas y riesgo, Departamento de Administración de la Universidad Autónoma Metropolitana Unidad Azcapotzalco, vol. 11(1), pages 59-80, enero-jun.
  • Handle: RePEc:sfr:efruam:v:11:y:2021:i:1:p:59-80
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    Keywords

    Markov-Switching models; Sharpe ratio; Pension funds; Informed decision; Portfolio selection. / cambio de régimen con modelos de Markov; razón de Sharpe ratio; fondos de pensión; decisiones informada; selección de portafolios de inversión.;
    All these keywords.

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • H55 - Public Economics - - National Government Expenditures and Related Policies - - - Social Security and Public Pensions

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