Multivariate Tcopula-GJR

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Multivariate Tcopula-GJR

fxjazz
Hi,

I am new to quantlib and still figuring out howto use it. I have been through the documentation and it seems that only stationary volatility process can be used to generate correlated paths.

I was wondering whether there is a way to use an asymetric GARCH model along with a t-copula to induce correlation between residuals to simulate multi-assets paths?

My primary objective is to generate MonteCarlo simulations using EVT and copulas in order to estimate the VaR of a portfolio.


Many thanks in advance
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Re: Multivariate Tcopula-GJR

Luigi Ballabio
Hello,
    you might encapsulate the model and the copula in a new process,
at which point you could pass it to the path-generation machinery.
See chapter 6 at <http://sites.google.com/site/luigiballabio/qlbook>
for an overview of the Monte Carlo framework (and of course, post
again if you get stuck).

Luigi


On Wed, Mar 7, 2012 at 10:00 AM, fxjazz <[hidden email]> wrote:

> I am new to quantlib and still figuring out howto use it. I have been
> through the documentation and it seems that only stationary volatility
> process can be used to generate correlated paths.
>
> I was wondering whether there is a way to use an asymetric GARCH model along
> with a t-copula to induce correlation between residuals to simulate
> multi-assets paths?
>
> My primary objective is to generate MonteCarlo simulations using EVT and
> copulas in order to estimate the VaR of a portfolio.

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