Multivariate negative aging in an exchangeable model of heterogeneity

F. Spizzichino and G. L. Torrisi

Statistics & Probability Letters, 2001, vol. 55, issue 1, 71-82

Abstract: We consider a simple exchangeable model, which accounts for heterogeneity and dependence. Based on this model, we show how, and in which sense, situations of negative aging arise in a natural way from conditions of heterogeneity among items.

Keywords: Exchangeability; Mixtures; DFR; distributions; Schur; convexity (search for similar items in EconPapers)
Date: 2001
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