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estimating model with added observable exogenous variables

PostPosted: Fri Jul 18, 2008 11:04 am
by antmoreno
Hi all,

I am trying to estimate a model with three endogenous variables, three equations, three shocks AND TWO ADDITIONAL OBSERVABLE EXOGENOUS VARIABLES... a limited information model, that is to say.

I cannot get it to work. How should I call the two additional exogenous variables: as endogenous or exogenous? Should I write three or five equations (where the last two eqns would be identity eqns)?

Thanks so much for your help,

Antonio

PostPosted: Sun Jul 20, 2008 6:03 am
by reubenpjacob
you need as many shocks (or more ) as you have observables.

PostPosted: Mon Jul 21, 2008 9:22 am
by antmoreno
Thanks so much, Reuben. I already made it to work.