External regressors in GARCH variance eq.

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External regressors in GARCH variance eq.

by Radovan Fišer :: Rate this Message:

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Hello to all R users,

up to my knowledge, neither garch(tseries) nor garchFit(fGarch)
support including external regressors in variance equation regression
(not mean), which, for  example, arima(stats) can do by setting xreg.
Is there a package or any other way that can do this?

 To be precise, I want to estimate a variance equation that goes like this:
 h_t = arch_t + garch_t + dummy1_t + dummy2_t + v_t.

 Any advise appreciated!

 Radovan Fiser

--
 Institute of Economic Studies
 Prague
 http://ies.fsv.cuni.cz/
 radekf.net
 bikeri.cz - kostelnibriza.cz - fiserovi.cz - hcsgang.com

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Re: External regressors in GARCH variance eq.

by Jaromir Baxa :: Rate this Message:

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Don't know whether R knows that, but gretl does in its 1.7 version for  
sure. It has also direct link for export and import with R.
Best,
Jaromir Baxa

Dne Mon, 21 Apr 2008 21:00:15 +0200 Radovan Fišer <rfiser@...>  
napsal/-a:

> Hello to all R users,
>
> up to my knowledge, neither garch(tseries) nor garchFit(fGarch)
> support including external regressors in variance equation regression
> (not mean), which, for  example, arima(stats) can do by setting xreg.
> Is there a package or any other way that can do this?
>
>  To be precise, I want to estimate a variance equation that goes like  
> this:
>  h_t = arch_t + garch_t + dummy1_t + dummy2_t + v_t.
>
>  Any advise appreciated!
>
>  Radovan Fiser
>
> --
>  Institute of Economic Studies
>  Prague
>  http://ies.fsv.cuni.cz/
>  radekf.net
>  bikeri.cz - kostelnibriza.cz - fiserovi.cz - hcsgang.com
>
> _______________________________________________
> R-SIG-Finance@... mailing list
> https://stat.ethz.ch/mailman/listinfo/r-sig-finance
> -- Subscriber-posting only.
> -- If you want to post, subscribe first.
>
>
>

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