Bayes prediction of Poisson regression superpopulation mean with a non gamma prior

Priyanka Aggarwal and Ashok K. Bansal

Communications in Statistics - Theory and Methods, 2017, vol. 46, issue 11, 5531-5543

Abstract: We consider Khamis' (1960) Laguerre expansion with gamma weight function as a class of “near-gamma” priors (K-prior) to obtain the Bayes predictor of a finite population mean under the Poisson regression superpopulation model using Zellner's balanced loss function (BLF). Kullback–Leibler (K-L) distance between gamma and some K-priors is tabulated to examine the quantitative prior robustness. Some numerical investigations are also conducted to illustrate the effects of a change in skewness and/or kurtosis on the Bayes predictor and the corresponding minimal Bayes predictive expected loss (MBPEL). Loss robustness with respect to the class of BLFs is also examined in terms of relative savings loss (RSL).

Date: 2017
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DOI: 10.1080/03610926.2015.1104355

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