[Forum SIS] UNIBO Statistics Seminar

[Silvia Cagnone]

We are glad to announce the following  Statistics Seminar:



Friday,  September 15, 2.30 pm


Room III, via delle Belle Arti 41, Bologna


Nikolai Kolev  (University of Sao Paulo)


Bivariate Teissier Model and Applications

Abstract: The baseline model under consideration has been first introduced by the French biologist Teissier (1934) considering a mortality of several domestic animal species protected from accidents and disease, i.e., dying as a result of a "pure aging". Specifically, for a non-negative random variable X, the model is defined by the survival function

P(X > x) = exp{x + 1- exp(x)}, x≥ 0:

It is direct to check that the corresponding mean residual life function E[X-x|X> x] = exp{-x}. Teissier's distribution is motivated by the empirical fact that many vital functions are decaying exponentially. We first give historical remarks about the forgotten univariate Teissier's model. We introduce a bivariate version of the Teissier distribution and outline its basic properties. The corresponding copula is obtained and applications are discussed.

Reference: Teissier, G. (1934). Recherches sur le vieillissement et sur les lois de mortalite. Annales de Physiologie et de Physicochimie Biologique 10, 237-284.


Contact person: Sabrina Mulinacci


The schedule of the statistics seminars are available at http://www.stat.unibo.it/it/dipartimento/seminari-di-statistica-2017



Silvia Cagnone
Department of Statistical Sciences "Paolo Fortunati"
University of Bologna
Via delle Belle Arti 41 - 40126  Bologna,  ITALY
Tel: +39 051 2098213  Fax: +39 051 232153
http://www2.stat.unibo.it/cagnone/

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