Impulse Responses

Questions and discussions on Vector Autoregressions
luching
Posts: 64
Joined: Mon Jun 07, 2010 4:05 pm

Impulse Responses

Unread post by luching »

Hi Tom,

I am using the montevar to estimate a small VAR model. I have a technical question on the impulse responses. As is standard in the literature, the impulses are shown as differences from conditional expectations. That is E_t(y_t+h|e_t) - E_t(y_t+h). I was wondering if there is a straight forward way or built in command to do it in terms of the initial data point, That is, E_t(y_t+h|e_t) - E_t(y_t).
TomDoan
Posts: 7814
Joined: Wed Nov 01, 2006 4:36 pm

Re: Impulse Responses

Unread post by TomDoan »

That's not independent of the initial conditions so you would have to do a FORECAST with added shocks and subtract.
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