, Volume 14, Issue 2, pp 317–384 | Cite as

Intrinsic credible regions: An objective Bayesian approach to interval estimation

  • José M. BernardoEmail author


This paper definesintrinsic credible regions, a method to produce objective Bayesian credible regions which only depends on the assumed model and the available data.Lowest posterior loss (LPL) regions are defined as Bayesian credible regions which contain values of minimum posterior expected loss: they depend both on the loss function and on the prior specification. An invariant, information-theory based loss function, theintrinsic discrepancy is argued to be appropriate for scientific communication. Intrinsic credible regions are the lowest posterior loss regions with respect to the intrinsic discrepancy loss and the appropriate reference prior. The proposed procedure is completely general, and it is invariant under both reparametrization and marginalization. The exact derivation of intrinsic credible regions often requires numerical integration, but good analytical approximations are provided. Special attention is given to one-dimensional intrinsic credible intervals; their coverage properties show that they are always approximate (and sometimes exact) frequentist confidence intervals. The method is illustrated with a number of examples.

Key Words

Amount of information intrinsic discrepancy Bayesian asymptotics confidence intervals Fisher information HPD regions interval estimation Jeffreys priors LPL regions objective priors reference priors point estimation probability centred intervals region estimation 

AMS subject classification

Primary 62F15 Secondary 62F25 62B10 


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Copyright information

© Sociedad Española de Estadistica e Investigacion Operativa 2005

Authors and Affiliations

  1. 1.Departamento de Estadística e I. O.Universidad de ValenciaSpain

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