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Modelos de precios de los activos: un ejercicio comparativo basado en redes neuronales aplicado al mercado de valores colombiano

Author

Listed:
  • Londono Henao, Charle Augusto
  • Cuan Jaramillo, Yaneth María

Abstract

Resumen: Este estudio tiene como finalidad evaluar la efectividad que variables tales como el tamano de la firma y la relación del valor en libros a valor de mercado-presentes en el modelo de Fama y French-tienen para capturar el retorno esperado promedio de los activos, en comparación con los fundamentales macroeconómicos o un índice de mercado. Para este propósito, se utilizó un modelo de redes neuronales artificiales (RNA), el cual parte de una estructura de estimación no lineal que permite capturar ciertas irregularidades que presentan los mercados financieros. Se encontró que el modelo de Fama y French mostró una mejor capacidad explicativa de las condiciones del mercado de valores colombiano, esbozándose la importancia de los factores de riesgo microeconómico para explicar el retorno de los activos.Abstract: This study seeks to evaluate the effectiveness that variables like firm size and book-to-market ratio-present in the model of Fama and French-have to capture the average expected return on assets, as compared to macroeconomic fundamentals or the market index. For this purpose, we used an artificial neural network model (ANN), which departs from a structure of non-linear estimation to capture some irregularities that characterize financial markets. We found that the Fama and French model accounts for the conditions of the Colombian stock market better, which suggests the importance of microeconomic risk factors to explain asset returns.

Suggested Citation

  • Londono Henao, Charle Augusto & Cuan Jaramillo, Yaneth María, 2011. "Modelos de precios de los activos: un ejercicio comparativo basado en redes neuronales aplicado al mercado de valores colombiano," Revista Lecturas de Economía, Universidad de Antioquia, CIE, November.
  • Handle: RePEc:col:000174:010141
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    More about this item

    Keywords

    modelos de precios de los activos; variables macroeconómicas y financieras; mercado de valores; redes neuronales artificiales;
    All these keywords.

    JEL classification:

    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • D2 - Microeconomics - - Production and Organizations
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
    • C45 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Neural Networks and Related Topics

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