Artikel
Hierarchical transmuted log-logistic model: A subjective Bayesian analysis
In this study, we propose to apply the transmuted log-logistic (TLL) model which is a generalization of log-logistic model, in a Bayesian context. The log-logistic model has been used it is simple and has a unimodal hazard rate, important characteristic in survival analysis. Also, the TLL model was formulated by using the quadratic transmutation map, that is a simple way of derivating new distributions, and it adds a new parameter λ, which one introduces a skewness in the new distribution and preserves the moments of the baseline model. The Bayesian model was formulated by using the half-Cauchy prior which is an alternative prior to a inverse Gamma distribution. In order to fit the model, a real data set, which consist of the time up to first calving of polled Tabapua race, was used. Finally, after the model was fitted, an influential analysis was made and excluding only 0.1% of observations (influential points), the reestimated model can fit the data better.
- Sprache
-
Englisch
- Erschienen in
-
Journal: Journal of Risk and Financial Management ; ISSN: 1911-8074 ; Volume: 11 ; Year: 2018 ; Issue: 1 ; Pages: 1-12 ; Basel: MDPI
- Klassifikation
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Wirtschaft
- Thema
-
hierarchical Bayesian model
influential analysis
log-logistic distribution
transmuted map
- Ereignis
-
Geistige Schöpfung
- (wer)
-
dos Santos, Carlos A.
Granzotto, Daniele C. T.
Tomazella, Vera L. D.
Louzada, Francisco
- Ereignis
-
Veröffentlichung
- (wer)
-
MDPI
- (wo)
-
Basel
- (wann)
-
2018
- DOI
-
doi:10.3390/jrfm11010013
- Handle
- Letzte Aktualisierung
-
10.03.2025, 11:43 MEZ
Datenpartner
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Objekttyp
- Artikel
Beteiligte
- dos Santos, Carlos A.
- Granzotto, Daniele C. T.
- Tomazella, Vera L. D.
- Louzada, Francisco
- MDPI
Entstanden
- 2018
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