[R-SIG-Finance] calibration of GARCH models to futures data
Ivette
iva_mihaylova at mail.ru
Wed May 2 18:02:53 CEST 2012
I have done the usual estimation of GARCH models with R, applied to my
historical dataset (commodities futures) with a maximum likelihood function
and selected the best model on the basis of information criteria (AIC, BIC).
Can somebody explain me the calibration scheme for a GARCH model with
futures data?
I was not able to find a paper, dealing with exactly this algorithm for my
case. I only understood from the unrelated calibration literature that in
general I have to compare the performance of the best model (from the
estimation step), fitted to my historical dataset and a simulation (let's
abbreviate this Squared Error difference to "E2").
However, it is not clear to me:
- with what parameters' values to start this simulation,
- how many times it is normal to perform it,
- what to compare via E2 (maximum likelihood values, or parameter values)
- how to construct & assess E2 for the GARCH case.
Thank you in advance for your suggestions.
Ivette
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