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arXiv 2209.03017math.NAcs.NAq-fin.CP
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数字期权的多层路径分支方法

Multilevel Path Branching for Digital Options

Michael B. Giles, Abdul-Lateef Haji-Ali

AI总结:

本文提出一种基于重复路径分裂的数字期权蒙特卡洛估计器,利用共享布朗路径的相关性,并与多层蒙特卡洛结合,使计算复杂度达到与Lipschitz收益期权MLMC相近的水平。

摘要:

我们针对标的资产由随机微分方程(SDE)建模的数字期权,提出一种新的基于蒙特卡洛的估计器。该新估计器基于重复路径分裂,并依赖于共享部分布朗路径的底层SDE近似路径之间的相关性。将该新估计器与多层蒙特卡洛(MLMC)相结合,可得到一种计算复杂度与应用于具有Lipschitz收益的期权时的MLMC估计器复杂度相近的估计器。本预印本包含详细计算和证明(以灰色显示),这些内容未经同行评审,也未包含在已发表的文章中。

英文摘要:

We propose a new Monte Carlo-based estimator for digital options with assets modelled by a stochastic differential equation (SDE). The new estimator is based on repeated path splitting and relies on the correlation of approximate paths of the underlying SDE that share parts of a Brownian path. Combining this new estimator with Multilevel Monte Carlo (MLMC) leads to an estimator with a computational complexity that is similar to the complexity of a MLMC estimator when applied to options with Lipschitz payoffs. This preprint includes detailed calculations and proofs (in grey colour) which are not peer-reviewed and not included in the published article.

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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