Stochastic Ordering of Exponential Family Distributions and Their Mixturesxk
نویسندگان
چکیده
منابع مشابه
Stochastic Ordering of Exponential Family Distributions and Their Mixtures
We investigate stochastic comparisons between exponential family distributions and their mixtures with respect to the usual stochastic order, the hazard rate order, the reversed hazard rate order, and the likelihood ratio order. A general theorem based on the notion of relative log-concavity is shown to unify various specific results for the Poisson, binomial, negative binomial, and gamma distr...
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We investigate stochastic comparisons between exponential family distributions and their mixtures with respect to the usual stochastic order, the hazard rate order, the reversed hazard rate order, and the likelihood ratio order. A general theorem based on the notion of relative log-concavity is shown to unify various specific results for the Poisson, binomial, negative binomial, and gamma distr...
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In this paper, random vectors following the multivariate generalized hyperbolic (GH) distribution are compared using the hessian stochastic order. This family includes the classes of symmetric and asymmetric distributions by which different behaviors of kurtosis in skewed and heavy tail data can be captured. By considering some closed convex cones and their duals, we derive some necessary and s...
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ژورنال
عنوان ژورنال: Journal of Applied Probability
سال: 2009
ISSN: 0021-9002,1475-6072
DOI: 10.1017/s0021900200005337