Search found 7 matches

by Fenix
Thu Nov 15, 2012 9:06 am
Forum: Estimation
Topic: Regression with an ar(1) or x(-1) term
Replies: 3
Views: 8146

Re: Regression with an ar(1) or x(-1) term

Ohhhh, a great article, thanks! So that's why there is this 'convergence' message. Does it use the Cochrane-Orcutt estimator?
by Fenix
Thu Nov 15, 2012 6:55 am
Forum: Estimation
Topic: Regression with an ar(1) or x(-1) term
Replies: 3
Views: 8146

Regression with an ar(1) or x(-1) term

Hey!

This might be a stupid question but, is there a difference between using the term ar(1) for a regressor, or just using x(-1)?

I do this regression

Code: Select all

ls ltv c ar(1)  dumb


and it is different than

Code: Select all

ls ltv c ltv(-1)  dumb


Eviews 7

Regards.
by Fenix
Wed Jun 27, 2012 2:29 am
Forum: General Information and Tips and Tricks
Topic: Frequency Conversion
Replies: 45
Views: 170988

Re: Frequency Conversion

Hey! Is there a way to have linear interpolation without using the last ovservation, just use average values? I have annual data. I convert it to quarterly. If I choose constant-match average and paste it as a link I get just the annual values divided by four in the spreadsheet BUT when I graph it, ...
by Fenix
Sat Feb 12, 2011 12:58 pm
Forum: Programming
Topic: negative shocks to impulse response function
Replies: 14
Views: 18653

Re: negative shocks to impulse response function

Anyone?
by Fenix
Wed Feb 09, 2011 4:31 am
Forum: Programming
Topic: negative shocks to impulse response function
Replies: 14
Views: 18653

Re: negative shocks to impulse response function

Hey guys! I have a similar question, which simplifies mostly to 'how do I reverse the sign?` I have a symmetric VAR, it is a small sample and I want to use Cholesky dof adjusted. If I do it as the user guide (and Glenn) suggested, I get a shock, which is actually a residual shock (i.e. the shock imp...
by Fenix
Fri Feb 04, 2011 11:32 am
Forum: Estimation
Topic: Shock to an exog. variable in a VAR (VARX)
Replies: 4
Views: 7039

Re: Shock to an exog. variable in a VAR (VARX)

Thanks Gareth! Shame to hear that though... I have a model of this sort - http://econ.la.psu.edu/~hbierens/EasyRegTours/VAR_Tourfiles/VARX.PDF This doesn't have to read that as a whole, just a glimps on the first page is sufficient. Basically the following setup y_t= c + sum(from i=1 to k_y) A(i) * ...
by Fenix
Fri Feb 04, 2011 11:06 am
Forum: Estimation
Topic: Shock to an exog. variable in a VAR (VARX)
Replies: 4
Views: 7039

Shock to an exog. variable in a VAR (VARX)

Hey guys! I have this problem that I have been struggling with it for over a week. I have a VARX - a vectorautoregression with one exogenous variable (apart from the constant). This variable is stochastic, so I want to see what happens to the system if there is a shock to it but I cannot do it in Ev...

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