wald test in a Var

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giotira
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Joined: Wed Mar 10, 2010 10:13 am

wald test in a Var

Postby giotira » Wed Mar 10, 2010 10:31 am

hi, i am regressing a var on a panel data, using 2-3 dependent variable with 4 lags.
I would like to test if the coefficents of the lagged dependent variables are jointly equal to zero (i.e. c(5)+c(4)+c(3)+c(2)=0).
do you know how can i write it?
thanks

EViews Gareth
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Re: wald test in a Var

Postby EViews Gareth » Wed Mar 10, 2010 11:12 am

You can turn your VAR into a system object (proc->make system), and then from the system you can perform a wald test (view->coefficient diagnostics).


You should note that you could be careful running a VAR on a panel data set. EViews does not perform what are typically called "panel VAR" estimators. It just performs a regular VAR.

giotira
Posts: 13
Joined: Wed Mar 10, 2010 10:13 am

Re: wald test in a Var

Postby giotira » Wed Mar 10, 2010 12:07 pm

i can not find view->coefficient diagnostics ion the system.

I run an alternative solution: I am scomposing the VAR as two different simple equation and i apply the wald on it simply changing the dependent variable. what do u think?

why u say it does not perform panel Var estimation? I manage to categorize in the workfile my data as panel and then i run a var on it. is it this enough?

EViews Gareth
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Re: wald test in a Var

Postby EViews Gareth » Wed Mar 10, 2010 2:11 pm

Composing it as two separate equations will work too.


As I said, you can run a VAR on panel data in EViews, but it does regular VAR estimation, not "panel VAR" estimation.


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