J statistics and GMM

For technical questions regarding estimation of single equations, systems, VARs, Factor analysis and State Space Models in EViews. General econometric questions and advice should go in the Econometric Discussions forum.

Moderators: EViews Gareth, EViews Moderator

BGstudent
Posts: 7
Joined: Sat Jul 26, 2014 2:36 pm

J statistics and GMM

Postby BGstudent » Sat Aug 16, 2014 8:10 am

Hello,

When EViews reports results from GMM estimation the "J-stats" is the J statistics right, not the probability of "J statistics".

Radoslav

EViews Gareth
Fe ddaethom, fe welon, fe amcangyfrifon
Posts: 13586
Joined: Tue Sep 16, 2008 5:38 pm

Re: J statistics and GMM

Postby EViews Gareth » Sat Aug 16, 2014 8:59 am

Correct

BGstudent
Posts: 7
Joined: Sat Jul 26, 2014 2:36 pm

Re: J statistics and GMM

Postby BGstudent » Mon Aug 18, 2014 5:56 am

Hi Gareth,
Does EViews have a feature which shows the probability of J-stat?

Radoslav

EViews Gareth
Fe ddaethom, fe welon, fe amcangyfrifon
Posts: 13586
Joined: Tue Sep 16, 2008 5:38 pm

Re: J statistics and GMM

Postby EViews Gareth » Mon Aug 18, 2014 7:54 am

By default the prob is shown:

Image

BGstudent
Posts: 7
Joined: Sat Jul 26, 2014 2:36 pm

Re: J statistics and GMM

Postby BGstudent » Mon Aug 18, 2014 8:21 am

Image
So it doesnt show it when the J-statistics is very low?

startz
Non-normality and collinearity are NOT problems!
Posts: 3797
Joined: Wed Sep 17, 2008 2:25 pm

Re: J statistics and GMM

Postby startz » Mon Aug 18, 2014 8:26 am

I believe that you have a just-identified system, so the J-statistic is zero except for rounding error. The p-value doesn't mean anything.

EViews Gareth
Fe ddaethom, fe welon, fe amcangyfrifon
Posts: 13586
Joined: Tue Sep 16, 2008 5:38 pm

Re: J statistics and GMM

Postby EViews Gareth » Mon Aug 18, 2014 8:41 am

You have a panel equation. We don't show the p-value on a panel.

BGstudent
Posts: 7
Joined: Sat Jul 26, 2014 2:36 pm

Re: J statistics and GMM

Postby BGstudent » Mon Aug 18, 2014 8:54 am

Thank you, Gareth.

delcredere
Posts: 15
Joined: Sat Sep 10, 2011 2:52 pm

Re: J statistics and GMM

Postby delcredere » Thu Aug 28, 2014 1:04 pm

to get the pvalue of the j statistics you use the below:


scalar pval=@chisq(J-Statistic, instruemntrank-nummber of regressors in the model)

my question is how do you execute that command in eviews 8


Return to “Estimation”

Who is online

Users browsing this forum: No registered users and 2 guests