Interpreting Impulse Responses coming out of RWZ approach

Questions and discussions on Vector Autoregressions
AmateurRatsUser
Posts: 7
Joined: Fri Jan 04, 2013 4:18 am

Interpreting Impulse Responses coming out of RWZ approach

Unread post by AmateurRatsUser »

Hey Tom,

I have used RWZ approach to identify a VAR model using sign restrictions. However, I am confused regrading the interpretation of the impulse responses. The impulse responses are scaled to have unit variances. Do I need to re-scale them in terms of standard deviations as advised in programming guide by Walter Enders?

Thanks in advance
TomDoan
Posts: 7814
Joined: Wed Nov 01, 2006 4:36 pm

Re: Interpreting Impulse Responses coming out of RWZ approac

Unread post by TomDoan »

I'm not sure to what you are referring in the Enders' Programming Manual. The sign-restriction approach generates "impulse vectors" which are unit orthogonalized shocks, but they are natural scale in the actual variables.
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