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Goodness-of-fit techniques for count data models: an application to the demand for dental care in Spain |
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| Authors: | Begoña Álvarez Miguel A. Delgado |
| Affiliation: | (1) Departamento de Economı′a Aplicada, Universidad de Vigo, Lagoas Marcosende, Vigo 36310, Spain., ES;(2) Departamento de Estadı′stica y Econometrı′a, Universidad Carlos III de Madrid, C./ Madrid 126–128, Getafe 28903, Spain. (E-mail: delgado@est-econ.uc3m.es.), ES |
| Abstract: | This paper compares the practical performance of alternative goodness-of-fit techniques for count data models in the context of a study of the determinants of demand for dental care in Spain. We apply alternative goodness-of-fit techniques to different specifications. In particular, we implement recently proposed specification tests which are consistent in the direction of general nonparametric alternatives. The analysis suggests that a negative binomial model is an appropriate specification for dental care demand. Dental health and income are identified as important predictors of individuals' behavior. First version received: April 2000/Final version received: March 2001 |
| Keywords: | : Poisson regression negative binomial regression hurdle model specification tests dental care |
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