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Lookup NU author(s): Dr Cristiano Villa
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Two-piece location-scale models are used for modeling data presenting departures from symmetry. In this paper, we propose an objective Bayesian methodology for the tail parameter of two particular distributions of the above family: the skewed exponential power distribution and the skewed generalised logistic distribution. We apply the proposed objective approach to time series models and linear regression models where the error terms follow the distributions object of study. The performance of the proposed approach is illustrated through simulation experiments and real data analysis. The methodology yields improvements in density forecasts, as shown by the analysis we carry out on the electricity prices in Nordpool markets.
Author(s): Leisen F, Rossini L, Villa C
Publication type: Article
Publication status: Published
Journal: Statistical Methods and Applications
Online publication date: 26/06/2019
Acceptance date: 15/06/2019
ISSN (print): 1618-2510
ISSN (electronic): 1613-981X
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