《Hyperbolic normal stochastic volatility model》
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作者:
Jaehyuk Choi, Chenru Liu, Byoung Ki Seo
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最新提交年份:
2018
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英文摘要:
For option pricing models and heavy-tailed distributions, this study proposes a continuous-time stochastic volatility model based on an arithmetic Brownian motion: a one-parameter extension of the normal stochastic alpha-beta-rho (SABR) model. Using two generalized Bougerol\'s identities in the literature, the study shows that our model has a closed-form Monte-Carlo simulation scheme and that the transition probability for one special case follows Johnson\'s $S_U$ distribution---a popular heavy-tailed distribution originally proposed without stochastic process. It is argued that the $S_U$ distribution serves as an analytically superior alternative to the normal SABR model because the two distributions are empirically similar.
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中文摘要:
对于期权定价模型和重尾分布,本研究提出了一个基于算术布朗运动的连续时间随机波动率模型:正态随机α-β-ρ(SABR)模型的单参数扩展。利用文献中的两个广义布杰罗恒等式,研究表明,我们的模型具有封闭形式的蒙特卡罗模拟方案,并且一种特殊情况下的转移概率遵循Johnson的$s\\U$分布,这是一种最初提出的没有随机过程的流行重尾分布。有人认为,美元S\\U$分布在分析上优于正态SABR模型,因为这两种分布在经验上是相似的。
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分类信息:
一级分类:Quantitative Finance 数量金融学
二级分类:Mathematical Finance 数学金融学
分类描述:Mathematical and analytical methods of finance, including stochastic, probabilistic and functional analysis, algebraic, geometric and other methods
金融的数学和分析方法,包括随机、概率和泛函分析、代数、几何和其他方法
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一级分类:Statistics 统计学
二级分类:Applications 应用程序
分类描述:Biology, Education, Epidemiology, Engineering, Environmental Sciences, Medical, Physical Sciences, Quality Control, Social Sciences
生物学,教育学,流行病学,工程学,环境科学,医学,物理科学,质量控制,社会科学
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