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arXiv 2001.09992math.PR
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混合分数风险过程

Mixed fractional Risk Process

K. K. Kataria, M. Khandakar

摘要:

在本文中,我们引入了一个风险过程,即混合分数风险过程(MFRP),其中的索赔数在相关的索赔过程中使用混合分数泊松过程(MFPP)建模。研究了MFRP的协方差结构,建立了MFRP的长程相关性质。此外,我们表明,MFRP的增量表现出短程相关性质。在MFPP的基础上,引入了另一个分数风险过程,我们称之为MFRP-Ⅱ。它在保险费方面与最低限度保险费不同。在索赔额服从指数分布和次指数分布的情形下,得到了其破产概率。

英文摘要:

In this paper, we introduce a risk process, namely, the mixed fractional risk process (MFRP) in which the number of claims in the associated claim process are modelled using the mixed fractional Poisson process (MFPP). The covariance structure of the MFRP is studied and its long-range dependence property has been established. Also, we show that the increments of MFRP exhibit the short-range dependence property. Another fractional risk process based on the MFPP is introduced which we call as the MFRP-II. It differs from the MFRP in terms of premium. Its ruin probabilities in the case of exponential and subexponential distributions of claim sizes are obtained.

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