On the Construction of Bivariate Exponential Distributions with an Arbitrary Correlation Coefficient

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In this article we use the concept of multivariate phase-type distributions to define a class of bivariate exponential distributions. This class has the following three appealing properties. Firstly, we may construct a pair of exponentially distributed random variables with any feasible correlation coefficient (also negative). Secondly, the class satisfies that any linear combination (projection) of the marginal random variables is a phase-type distribution. The latter property is partially important for the development of hypothesis testing in linear models. Finally, it is easy to simulate the exponential random vectors.
Original languageEnglish
JournalStochastic Models
Volume26
Issue number2
Pages (from-to)295-308
ISSN1532-6349
DOIs
Publication statusPublished - 2010
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Arbitrary correlation, Bivariate exponential distribution, Matrix-exponential, Phase-type distribution
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