The construction of new bivariate exponential distributions from a Bayesian perspective

Yu Hayakawa*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


We use an economic approach of Mendel to derive new bivariate exponential lifetime distributions. Features distinguishing this approach from the existing ones are (1) it makes use of the principle of indifference; (2) our parameter of interest is a measurable function of observable quantities; (3) the assessment of the probability measure for random lifetimes is performed by assessing that for random lifetime costs with a change of variables; and (4) characterization properties other than the bivariate loss-of-memory property are used to construct distributions. For the infinite population case, our distributions correspond to mixtures of existing bivariate exponential distributions such as the Freund distribution, the Marshall–Olkin distribution, and the Friday–Patil distribution. Moreover, a family of natural conjugate priors for Bayesian Freund (-type) bivariate exponential distributions is discussed.

Original languageEnglish
Pages (from-to)1044-1049
Number of pages6
JournalJournal of the American Statistical Association
Issue number427
Publication statusPublished - 1994 Sept
Externally publishedYes


  • Freund distribution
  • Friday–Patil distribution
  • Marshall–Olkin distribution
  • Principle of indifference
  • l-isotropy

ASJC Scopus subject areas

  • Statistics and Probability
  • Statistics, Probability and Uncertainty


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