Ordering the largest claim amounts and ranges from two sets of heterogeneous portfolios

Narayanaswamy Balakrishnan, Yiying Zhang and Peng Zhao

Scandinavian Actuarial Journal, 2018, vol. 2018, issue 1, 23-41

Abstract: This paper investigates the ordering properties of the largest claim amounts and sample ranges arising from two sets of heterogeneous portfolios. First, some sufficient conditions are provided in the sense of the usual stochastic ordering to compare the largest claim amounts from two sets of independent or interdependent claims. Second, comparison results on the largest claim amounts in the sense of the reversed hazard rate and hazard rate orderings are established for two batches of heterogeneous independent claims. Finally, we present sufficient conditions to stochastically compare sample ranges from two sets of heterogeneous claims by means of the usual stochastic ordering. Some numerical examples are also given to illustrate the theoretical findings. The results established here not only extend and generalize those known in the literature, but also provide insight that will be useful to lay down the annual premiums of policyholders.

Date: 2018
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DOI: 10.1080/03461238.2017.1278717

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