摘要翻译:
本文建立了企业投资组合中相关违约时间的动态点过程模型,并分析了随着资产池规模的增长,典型的违约情况在极限范围内的变化。在我们的模型中,一个公司以随机强度违约,它受到一个特殊的风险过程,一个所有公司共有的系统风险过程,以及过去的违约行为的影响。我们证明了池中违约率的一个大数定律,它描述了违约的“典型”行为。
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英文标题:
《Default clustering in large portfolios: Typical events》
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作者:
Kay Giesecke, Konstantinos Spiliopoulos, Richard B. Sowers
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最新提交年份:
2013
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分类信息:
一级分类:Quantitative Finance 数量金融学
二级分类:Risk Management 风险管理
分类描述:Measurement and management of financial risks in trading, banking, insurance, corporate and other applications
衡量和管理贸易、银行、保险、企业和其他应用中的金融风险
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一级分类:Mathematics 数学
二级分类:Probability 概率
分类描述:Theory and applications of probability and stochastic processes: e.g. central limit theorems, large deviations, stochastic differential equations, models from statistical mechanics, queuing theory
概率论与随机过程的理论与应用:例如中心极限定理,大偏差,随机微分方程,统计力学模型,排队论
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一级分类:Quantitative Finance 数量金融学
二级分类:Computational Finance 计算金融学
分类描述:Computational methods, including Monte Carlo, PDE, lattice and other numerical methods with applications to financial modeling
计算方法,包括蒙特卡罗,偏微分方程,格子和其他数值方法,并应用于金融建模
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英文摘要:
We develop a dynamic point process model of correlated default timing in a portfolio of firms, and analyze typical default profiles in the limit as the size of the pool grows. In our model, a firm defaults at a stochastic intensity that is influenced by an idiosyncratic risk process, a systematic risk process common to all firms, and past defaults. We prove a law of large numbers for the default rate in the pool, which describes the "typical" behavior of defaults.
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PDF链接:
https://arxiv.org/pdf/1104.1773