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Selección óptima de portafolios usando el modelo Black-Litterman con views difusas

Author

Listed:
  • Franco Gómez, Yuly Andrea
  • Moreno Trujillo, John Freddy
  • Zapata Quimbayo, Carlos Andres

Abstract

Resumen: En este artículo se implementa un enfoque robusto para la selección óptima de portafolios de inversión, al incorporar los desarrollos del modelo Black-Litterman (BL) y la lógica difusa. Para ello, los retornos esperados, las opiniones del inversor (views) y la matriz de incertidumbre del modelo BL, se redefinen mediante la lógica difusa y se implementa un ejercicio de optimización para un portafolio constituido por acciones del mercado de valores colombiano. Los resultados muestran un desempeno favorable —fuera de muestra— del portafolio, en comparación con el modelo BL tradicional y el modelo media-varianza (MV), lo cual demuestra que el enfoque de lógica difusa permite incorporar información adicional para definir las views y medir la incertidumbre. Abstract: In this article, a robust approach to the optimal selection portfolio is implemented by incorporating the advances of the Black-Litterman (BL) model and fuzzy logic. To do that, the expected returns, the investor’s opinions (views) and the uncertainty matrix of the BL model are redefined using fuzzy logic and an optimization exercise is implemented for a portfolio of shares in the Colombian stock market. The results show an appropriate performance (out-sample) from the portfolio, in comparison with the traditional BL model and the mean-variance (MV) model, which shows that the fuzzy logic approach allows incorporating additional information to define the views and measure the uncertainty.

Suggested Citation

  • Franco Gómez, Yuly Andrea & Moreno Trujillo, John Freddy & Zapata Quimbayo, Carlos Andres, 2022. "Selección óptima de portafolios usando el modelo Black-Litterman con views difusas," Revista Lecturas de Economía, Universidad de Antioquia, CIE, issue No. 97, pages 369-393, May.
  • Handle: RePEc:col:000174:020501
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    More about this item

    Keywords

    Portafolio óptimo; modelo Black-Litterman; lógica difusa;
    All these keywords.

    JEL classification:

    • C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions

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