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arXiv 2005.14063q-fin.CP
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随机利率下期权定价的矩匹配方法

A moment matching method for option pricing under stochastic interest rates

Fabio Antonelli, Alessandro Ramponi, Sergio Scarlatti

摘要:

在本文中,我们提出了一个简单的,但新的,近似方法定价的看涨期权在Black & Scholes市场的特点是随机利率。该方法,基于一个简单的高斯矩匹配技术应用到一个条件的Black \& Scholes公式,是相当普遍的,它适用于各种模型,无论是仿射或不。为了检验其准确性和计算时间,我们使用蒙特卡罗模拟作为基准,将其应用于与基础资产相关的CIR利率模型。即使与Grzelak和Oosterlee(2011)中提出的仿射近似技术以及Kim和Kunimoto(1999)中引入的扩展公式所获得的类似结果相比,该方法的性能也相当显着,如我们在最后一节中所示。

英文摘要:

In this paper we present a simple, but new, approximation methodology for pricing a call option in a Black \& Scholes market characterized by stochastic interest rates. The method, based on a straightforward Gaussian moment matching technique applied to a conditional Black \& Scholes formula, is quite general and it applies to various models, whether affine or not. To check its accuracy and computational time, we implement it for the CIR interest rate model correlated with the underlying, using the Monte Carlo simulations as a benchmark. The method's performance turns out to be quite remarkable, even when compared with analogous results obtained by the affine approximation technique presented in Grzelak and Oosterlee (2011) and by the expansion formula introduced in Kim and Kunimoto (1999), as we show in the last section.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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