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Métodos cuantitativos para un modelo de regresión lineal con multicolinealidad. Aplicación a rendimientos de letras del tesoro || Quantitative Methods for a Linear Regression Model with Multicollinearity. Application to Yields of Treasury Bills

Author

Listed:
  • Salmerón Gómez, Román

    (Departamento de Métodos Cuantitativos para la Economía y la Empresa. Universidad de Granada (España))

  • Rodríguez Martínez, Eduardo

    (Máster en Técnicas Cuantitativas en Gestión Empresarial. Universidad de Granada (España))

Abstract

Es conocido que, cuando en el modelo de regresión lineal existe un alto grado de multicolinealidad, los resultados obtenidos a partir del método de mínimos cuadrados ordinarios (MCO) son inestables. Como solución a esta situación, en este trabajo se presentan los métodos de alzado, cresta y variables ortogonales como alternativa a la estimación por MCO. También se muestra que la regresión con variables ortogonales tiene sentido independientemente de la existencia de multicolinealidad grave, ya que permite dar respuesta a cuestiones no accesibles con el modelo original. Dichas metodologías se aplican a un conjunto de datos de rendimientos de letras del tesoro. || It is known that, when in the linear regression model there is a high degree of multicollinearity, the results obtained by using the Ordinary Least Squares (OLS) method are unstable. As a solution to this situation, in this paper we present the raised method, the ridge method and the orthogonal variables method as an alternative to the estimate by OLS. It is also shown that regression with orthogonal variables makes sense regardless of the existence of serious multicollinearity because it allows to answer questions which are not accessible when using the original model. These methodologies are applied to a data set of yields of treasury bills.

Suggested Citation

  • Salmerón Gómez, Román & Rodríguez Martínez, Eduardo, 2017. "Métodos cuantitativos para un modelo de regresión lineal con multicolinealidad. Aplicación a rendimientos de letras del tesoro || Quantitative Methods for a Linear Regression Model with Multicollinear," Revista de Métodos Cuantitativos para la Economía y la Empresa = Journal of Quantitative Methods for Economics and Business Administration, Universidad Pablo de Olavide, Department of Quantitative Methods for Economics and Business Administration, vol. 24(1), pages 169-189, Diciembre.
  • Handle: RePEc:pab:rmcpee:v:24:y:2018:i:1:169-189
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    References listed on IDEAS

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    1. Belsley, David A., 1982. "Assessing the presence of harmful collinearity and other forms of weak data through a test for signal-to-noise," Journal of Econometrics, Elsevier, vol. 20(2), pages 211-253, November.
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    More about this item

    Keywords

    modelos de regresión; multicolinealidad; regresión alzada; regresión cresta; regresión con variables ortogonales; regression models; multicollinearity; raised regression; ridge regression; regression with orthogonal variables;
    All these keywords.

    JEL classification:

    • C13 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Estimation: General
    • C21 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Cross-Sectional Models; Spatial Models; Treatment Effect Models

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