Robust Bayesian Pitman closeness

Jafar Ahmadi (), Elham Mirfarah () and Ahmad Parsian ()
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Jafar Ahmadi: Ordered and Spatial Data Center of Excellence, Ferdowsi University of Mashhad
Elham Mirfarah: Ferdowsi University of Mashhad
Ahmad Parsian: University of Tehran

Metrika: International Journal for Theoretical and Applied Statistics, 2016, vol. 79, issue 6, No 3, 691 pages

Abstract: Abstract In this paper, the robust Bayesian methodology has been developed in the sense of Pitman measure of closeness. To do this, the definition of Pitman posterior closeness, introduced by Ghosh and Sen (Commun Stat Theory Methods 20:3659–3678, 1991) and simultaneous closeness are integrated. First, the $$\varGamma $$ Γ -minimax problem is developed in the sense of Pitman’s criterion and the basic results and definitions are provided. Then, several results regarding Pitman $$\varGamma $$ Γ -minimax have been proved. Some examples have been presented to illustrate the application of the findings. Finally, other aspect of robust Bayesian methodology such as: Pitman stable rules and Pitman regret type estimators have been proposed.

Keywords: Robust Bayes estimators; $$\varGamma $$ Γ -Minimax rules; Pitman measure of closeness; Order statistics; Quantile (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1007/s00184-015-0572-6

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