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Alekk
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Joined: September 14th, 2007, 4:39 pm

closed form / Levy process

March 10th, 2008, 6:55 pm

Hi all, for my study I am doing a project where I have to study the convergence rate of a Euler scheme for a SDE driven by a levy process. This a very simple one, namely:dS/S = dZwhere Z is a Levy process of infinite activity. I have to do that for different Levy measures, and compute the price of a call optionE(h(S_T))This is why I was wondering if there exist closed form formulae available for some Levy measure ?thank you very much!
 
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mjy
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Joined: August 31st, 2007, 12:17 pm

closed form / Levy process

March 11th, 2008, 11:39 am

QuoteOriginally posted by: AlekkHi all, for my study I am doing a project where I have to study the convergence rate of a Euler scheme for a SDE driven by a levy process. This a very simple one, namely:dS/S = dZwhere Z is a Levy process of infinite activity. I have to do that for different Levy measures, and compute the price of a call optionE(h(S_T))This is why I was wondering if there exist closed form formulae available for some Levy measure ?thank you very much!yes, for instance variance gamma process (see Madan, Carr, and Chang 1998), double exponential jump diffusion (see Kou 2002). There might be many others, but I only come across these two.
 
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spursfan
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Joined: October 7th, 2001, 3:43 pm

closed form / Levy process

March 11th, 2008, 12:37 pm

depends what you mean by closed form - VG typically uses numerical integration and DEJD uses inversion of Laplace transform - though values are quick and accurate they're not as simple as say the Black-Scholes formula
 
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mjy
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Joined: August 31st, 2007, 12:17 pm

closed form / Levy process

March 11th, 2008, 2:16 pm

Black-Scholes formula uses numerical integration, as well.
 
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Antonio
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closed form / Levy process

March 12th, 2008, 7:55 am

You should have a look at the two books :- Cont, Tankov- Schoutens