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arXiv 1102.1348q-fin.CP
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用多层蒙特卡罗计算希腊人

The computation of Greeks with multilevel Monte Carlo

Sylvestre Burgos, M. B. Giles

摘要:

我们研究使用的多层蒙特卡罗技术的背景下,计算希腊人。路径敏感性分析区分了路径演化,降低了收益的平滑性。这带来了新的挑战:路径灵敏度对非Lipschitz支付的不适用性通常使得不可能使用朴素算法。这些挑战可以通过三种不同的方式来解决:在成熟之前使用回报的条件期望进行回报平滑;在最后一个时间步使用路径分裂来近似以前的技术;使用路径敏感性和Likewise Ratio方法的混合组合。我们调查这些替代品在不同的多层蒙特卡罗设置的优点和缺点。

英文摘要:

We study the use of the multilevel Monte Carlo technique in the context of the calculation of Greeks. The pathwise sensitivity analysis differentiates the path evolution and reduces the payoff's smoothness. This leads to new challenges: the inapplicability of pathwise sensitivities to non-Lipschitz payoffs often makes the use of naive algorithms impossible. These challenges can be addressed in three different ways: payoff smoothing using conditional expectations of the payoff before maturity; approximating the previous technique with path splitting for the final timestep; using of a hybrid combination of pathwise sensitivity and the Likelihood Ratio Method. We investigate the strengths and weaknesses of these alternatives in different multilevel Monte Carlo settings.

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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