英文标题:
《Consistent Inter-Model Specification for Time-Homogeneous SPX Stochastic
Volatility and VIX Market Models》
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作者:
Andrew Papanicolaou
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最新提交年份:
2018
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英文摘要:
This paper shows how to recover stochastic volatility models (SVMs) from market models for the VIX futures term structure. Market models have more flexibility for fitting of curves than do SVMs, and therefore they are better-suited for pricing VIX futures and derivatives. But the VIX itself is a derivative of the S&P500 (SPX) and it is common practice to price SPX derivatives using an SVM. Hence, a consistent model for both SPX and VIX derivatives would be one where the SVM is obtained by inverting the market model. This paper\'s main result is a method for the recovery of a stochastic volatility function as the output of an inverse problem, with the inputs given by a VIX futures market model. Analysis will show that some conditions need to be met in order for there to not be any inter-model arbitrage or mis-priced derivatives. Given these conditions the inverse problem can be solved. Several models are analyzed and explored numerically to gain a better understanding of the theory and its limitations.
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中文摘要:
本文展示了如何从波动率指数期货期限结构的市场模型中恢复随机波动率模型(SVM)。与支持向量机相比,市场模型在拟合曲线方面具有更大的灵活性,因此它们更适合为波动率指数期货和衍生品定价。但波动率指数本身是标准普尔500指数(SPX)的衍生品,通常使用支持向量机对SPX衍生品进行定价。因此,SPX和VIX衍生品的一致模型将是通过反转市场模型获得SVM的模型。本文的主要结果是,利用波动率指数期货市场模型给出的输入,将随机波动率函数恢复为反问题的输出。分析将表明,为了不存在任何模型间套利或定价错误的衍生品,需要满足一些条件。在这些条件下,可以求解反问题。为了更好地理解该理论及其局限性,对几种模型进行了数值分析和探索。
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分类信息:
一级分类:Quantitative Finance 数量金融学
二级分类:Pricing of Securities 证券定价
分类描述:Valuation and hedging of financial securities, their derivatives, and structured products
金融证券及其衍生产品和结构化产品的估值和套期保值
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