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A generalization of the power law distribution with nonlinear exponent.

Abstract: The power law distribution is usually used to fit data in the upper tail of the distribution. However, commonly it is not valid to model data in all the range. In this paper, we present a new family of distributions, the so-called Generalized Power Law (GPL), which can be useful for modeling data in all the range and possess power law tails. To do that, we model the exponent of the power law using a non-linear function which depends on data and two parameters. Then, we provide some basic properties and some specific models of that new family of distributions. After that, we study a relevant model of the family, with special emphasis on the quantile and hazard functions, and the corresponding estimation and testing methods. Finally, as an empirical evidence, we study how the debt is distributed across municipalities in Spain. We check that power law model is only valid in the upper tail; we show analytically and graphically the competence of the new model with municipal debt data in the whole range; and we compare the new distribution with other well-known distributions including the Lognormal, the Generalized Pareto, the Fisk, the Burr type XII and the Dagum models.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Commun Nonlinear Sci Numer Simulat 42 (2017) 215?228

Editorial: Elsevier

 Año de publicación: 2017

Nº de páginas: 13

Tipo de publicación: Artículo de Revista

DOI: 10.1016/j.cnsns.2016.06.004

ISSN: 1007-5704

Url de la publicación: http://dx.doi.org/10.1016/j.cnsns.2016.06.004

Autores/as

JOSE MARIA SARABIA ALZAGA