Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/107386
Título: A bimodal discrete shifted poisson distribution: a case study of tourists’ length of stay
Autores/as: Gómez Déniz, Emilio 
Pérez Rodríguez, Jorge Vicente 
Reyes, Jimmy
Gómez, Héctor W.
Clasificación UNESCO: 530202 Modelos econométricos
531290 Economía sectorial: turismo
Palabras clave: Bimodality
Covariate
Overdispersion
Shifted Poisson distribution
Length of tourist stay
Fecha de publicación: 2020
Proyectos: Aportaciones A la Toma de Decisiones Bayesianas Óptimas: Aplicaciones Al Coste-Efectividad Con Datos Clínicos y Al Análisis de Riestos Con Datos Acturiales. 
Publicación seriada: Symmetry 
Resumen: Although the Poisson distribution is appropriate for modelling equi-dispersed distributions, it reflects bimodality less well. In this paper, we propose a distribution which is more suitable for the latter purpose. It can be fitted to both positively and negatively skewed data and appears to represent overdispersion phenomena correctly in count data models obtained using a Poisson distribution. Furthermore, the distribution can be normalised in terms of its mean value, and therefore covariates can be included. Our empirical results are based on tourists’ length of stay in the Canary Islands (Spain), a popular holiday destination. The study analyses data supplied by the Canary Islands Tourist Expenditure Survey. Our findings show that the model presented is valid and that the fit obtained is reasonably good.
URI: http://hdl.handle.net/10553/107386
ISSN: 2073-8994
DOI: 10.3390/sym12030442
Fuente: Symmetry [ISSN 2073-8994], v. 12(3), 442, (Marzo 2020)
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