New approximations in local volatility models - Archive ouverte HAL
Chapitre D'ouvrage Année : 2013

New approximations in local volatility models

Résumé

For general time-dependent local volatility models, we propose new approximation formulas for the price of call options. This extends previous results of [BGM10b] where stochastic expansions combined with Malliavin calculus were performed to obtain approximation formulas based on the local volatility At The Money. Here, we derive alternative expansions involving the local volatility at strike. Averaging both expansions give even more accurate results. Approximations of the implied volatility are provided as well.
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Dates et versions

hal-00523369 , version 1 (05-10-2010)

Identifiants

  • HAL Id : hal-00523369 , version 1

Citer

Emmanuel Gobet, Ali Suleiman. New approximations in local volatility models. Y. Kabanov and M. Rutkowski and T. Zariphopoulou. Inspired by Finance. The Musiela Festschrift, Springer, pp.305--330, 2013. ⟨hal-00523369⟩
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