Search found 7 matches

by bouki_81
Sun May 06, 2012 10:24 pm
Forum: Econometric Discussions
Topic: the adjustment coefficeint in Johansen Cointegration
Replies: 0
Views: 2165

the adjustment coefficeint in Johansen Cointegration

dear all

I'm estimating a model with Johansen conitegration and ECM, but I'm confused about the adjustment coefficient. is the adjustment coefficient should be significantly negative and its value should be range between -1 and 0?

I need some one to clarify it for me.
thanks in advance
by bouki_81
Wed May 02, 2012 8:27 am
Forum: Econometric Discussions
Topic: Diagnostic test
Replies: 0
Views: 2468

Diagnostic test

Hi everybody I estimated a model for inflation by employing Johansen Cointegration and error correction model, but now I have problem with the diagnostic test. After I got the result of error correction model,based on the steps that are described in the eviews user's guide I estimated the model agai...
by bouki_81
Mon Feb 13, 2012 8:16 pm
Forum: Econometric Discussions
Topic: estimating time series model with I(0),I(1),I(2) processes
Replies: 1
Views: 3404

estimating time series model with I(0),I(1),I(2) processes

Hi.... I want to estimate a model for inflation, but I get the dependent variable has I(2) process and the other variables are mixed between I(0) and I(1) process, and I've been told that neither the johansen coitegration test nor the ARDL model are valid in this case, and I know to run johansen coi...
by bouki_81
Tue Feb 07, 2012 9:06 pm
Forum: Econometric Discussions
Topic: collinearity in time series
Replies: 6
Views: 7318

Re: collinearity in time series

thanks startz
I'm really appreciate your advices.
by bouki_81
Tue Feb 07, 2012 7:23 pm
Forum: Econometric Discussions
Topic: collinearity in time series
Replies: 6
Views: 7318

Re: collinearity in time series

thanks for your comment but don't you think that running cointegration test then estimating the VEC model knowing that some explanatory variables has a collinearity problem could make the results bias and inefficient, and using time series approach with johansen cointegration test does not solve the...
by bouki_81
Tue Feb 07, 2012 8:52 am
Forum: Econometric Discussions
Topic: collinearity in time series
Replies: 6
Views: 7318

Re: collinearity in time series

A least squares regression handles collinearity between the right hand side variables quite nicely.
thanks, but the least squares regression is not useful in this case since the series are integrated at order one and the OLS is no longer valid to estimate series with I(1) process.
by bouki_81
Mon Feb 06, 2012 11:05 pm
Forum: Econometric Discussions
Topic: collinearity in time series
Replies: 6
Views: 7318

collinearity in time series

I'm about estimating a regression equation with time series data, but the problem is that there is a correlation between two explanatory variables which is lead to collinearity, is there another way to deal with this problem rather than using instrument variable? cause the two variables are very imp...

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