Robust Errors in ml estimation

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dbbar
Posts: 1
Joined: Sat Nov 22, 2008 4:01 am

Robust Errors in ml estimation

Postby dbbar » Sat Nov 22, 2008 4:53 am

Hi all,

does someone has any idea how to get robust errors in ml estimation?

I am trying to estimate a GARCH model and need to calculate Bollerlev - Wooldrige robust errors.

Any help or hint?

Thanks

Dav

Gene
EViews Expert
Posts: 20
Joined: Wed Sep 24, 2008 1:08 pm

Re: Robust Errors in ml estimation

Postby Gene » Sun Nov 23, 2008 11:04 pm

dbbar wrote:I am trying to estimate a GARCH model [in ML object] and need to calculate Bollerlev - Wooldrige robust errors.


I don't think you can do this in the ML object. BW-standard errors are calculated after ML estimation and in a particular way that's only applicable to GARCH models. This is not how the ML object works where the SEs are estimated from the gradients of the ML model. It's not design for user to tinker with this last step. I can't think of a way tricking EViews to calculate the BW SE.


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