C. García García, R. Salmerón Gómez, C. Garcia Garcia

Cuando en un modelo de regresión lineal existe un grado de multicolinealidad aproximada que afecta al análisis estadístico del mismo, puede ocurrir que no se rechace la hipótesis nula en los contrastes de significación individual al mismo tiempo que se rechaza la hipótesis nula en el contraste de significación conjunta. Para salvar esta contradicción, se propone el uso del estimador por Mínimos Cuadrados Restringidos (MCR), que proporciona estimadores con menor varianza estimada que el de Mínimos Cuadrados Ordinarios (MCO), mitigando así este efecto de la multicolinealdiad aproximada sobre el análisis estadístico del modelo. Concretamente, puesto que la efectividad del estimador por MCR se basa en no rechazar la hipótesis realizada sobre las restricciones de los coeficientes del modelo, la novedad de la aportación realizada radica en la propuesta de utilizar como restricciones sobre los coeficientes del modelo las obtenidas al relacionar los coeficientes del modelo original y alzado.

Keywords: Multicolinealidad, varianza, MCR, regresión alzada

Scheduled

Invited Session Quantitative Methods for Economics and Business.
June 7, 2022  4:50 PM
Grade Hall


Other papers in the same session

La mortalidad de las empresas en sus primeros años de vida.

F. Prieto, J. M. Sarabia, E. Calderín-Ojeda

Redefinición del Factor de Inflación de la Varianza

R. Salmerón Gómez, C. Garcia Garcia, J. Garcia Perez

Ridge Regression in the Nelson-Siegel model

A. Rodríguez Sánchez, C. B. Garcia Garcia, R. Salmerón Gómez

The generalized raise regression: an alternative to ridge regression

C. Garcia Garcia, R. Salmerón Gómez, J. Garcia Perez


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