Empirical Economics

, Volume 27, Issue 3, pp 543–567 | Cite as

Goodness-of-fit techniques for count data models: an application to the demand for dental care in Spain

  • Begoña Álvarez
  • Miguel A. Delgado


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.

Key words: Poisson regression negative binomial regression hurdle model specification tests dental care 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Begoña Álvarez
    • 1
  • Miguel A. Delgado
    • 2
  1. 1.Departamento de Economı´a Aplicada, Universidad de Vigo, Lagoas Marcosende, Vigo 36310, Spain.ES
  2. 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

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