The finite-time ruin probability of a discrete-time risk model with GARCH discounted factors and dependent risks

The finite-time ruin probability of a discrete-time risk model with GARCH discounted factors and dependent risks
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具有 GARCH 贴现因子和相关风险的离散时间风险模型的有限时间破产概率

DOI:
10.1080/03610926.2017.1371753
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发表时间:
2018-09
期刊:
Communications in Statistics-Theory and Methods, 2018, 47(17): 4170-4186.
影响因子:
--
通讯作者:
Fenglong Guo
Fenglong Guo
中科院分区:
其他
文献类型:
--
作者:
Rongfei Liu;Dingcheng Wang;Fenglong Guo

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摘要研究了一类具有相依随机贴现因子和相依保险与金融风险的离散风险模型的有限时间破产概率。假设随机贴现因子服从Gestival过程,单期保险风险和金融风险构成一个独立同分布的随机对序列,这些随机对是一个二元Sarmanov相依分布的随机对的拷贝。当索赔额服从重尾分布时,建立了有限时间破产概率的渐近估计。将所得结果应用到一个特殊的情形,我们也得到了保守的渐近界。文末给出了数值模拟结果。
ABSTRACT The finite-time ruin probability of a discrete-time risk model with dependent stochastic discount factors and dependent insurance and financial risks is investigated in this paper. Assume that the stochastic discount factors follow a GARCH process and the one-period insurance and financial risks form a sequence of independent and identically distributed random pairs, which are the copies of a random pair with a bivariate Sarmanov dependent distribution. When the common distribution of claim-sizes is heavy-tailed, we establish an asymptotic estimate for the finite-time ruin probability. Applying the result to a special case, we also get conservative asymptotic bounds. A numerical simulation is given at the end of the paper.
DOI: 10.1239/aap/1363354110
发表时间: 2013-03
影响因子: 1.2
作者:
Fenglong Guo;Dingcheng Wang
通讯作者: Fenglong Guo;Dingcheng Wang
具有相关保险和金融风险的离散时间风险模型的破产概率
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