Testing overidentifying SVAR models

Questions and discussions on Vector Autoregressions
bonilla
Posts: 6
Joined: Wed Aug 01, 2012 10:12 am

Testing overidentifying SVAR models

Unread post by bonilla »

Hello,

I used montesvar.rpf procedure to estimate an overidentified SVAR (nvar=7 and nfree=20). I was wondering if it is possible to obtain the likelihood ratio test for the overidentified restrictions from the procedure. In fact, when using DMATRIX=MARGINALIZED, as in montesvar.rpf, we do not obtain the log likelihood restricted and unrestricted, which are neccesary for the likelihood ratio test. I think that the aswer is NO but, could I use DMATRIX=CONCENTRATED in order to get what I need without jeopardize the bayesian estimation? should I test my overindentified restriction separately?

Thanks a lot for your advices!!
TomDoan
Posts: 7814
Joined: Wed Nov 01, 2006 4:36 pm

Re: Testing overidentifying SVAR models

Unread post by TomDoan »

Yes. Use DMATRIX=CONCENTRATED if you want to do an LR test. DMATRIX=MARGINALIZED computes the log marginal density, not the log likelihood.
bonilla
Posts: 6
Joined: Wed Aug 01, 2012 10:12 am

Re: Testing overidentifying SVAR models

Unread post by bonilla »

Thanks Tom!
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