期刊
STATISTICAL SCIENCE
卷 26, 期 3, 页码 423-439出版社
INST MATHEMATICAL STATISTICS
DOI: 10.1214/11-STS357
关键词
Weak informativity; prior-data conflict; information; noninformativity
A question of some interest is how to characterize the amount of information that a prior puts into a statistical analysis. Rather than a general characterization, we provide an approach to characterizing the amount of information a prior puts into an analysis, when compared to another base prior. The base prior is considered to be the prior that best reflects the current available information. Our purpose then is to characterize priors that can be used as conservative inputs to an analysis relative to the base prior. The characterization that we provide is in terms of a priori measures of prior-data conflict.
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