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Hello there,

I am using the Gregory Hansen Test to look for relationships between four European stock markets (UK, France, Germany and Spain) and US. I am testing the relationship in pairs and weirdly I am getting the same results when testing with the same dependent variable (please see the attached photo). For example I have the same result for the following pairs US-Spain, UK-Spain, Germany-Spain, France-Spain. Any idea why? Is the test valid at all?

Here is a part of the formula:

group group1
group1.add lnfr
call greghansen(lnes,group1,4,"aic",6)

Hard to say without seeing the workfile.

Hi Trubador,

Please see the attached file.

And the program attached

llenk01 wrote:Hello there,

I am using the Gregory Hansen Test to look for relationships between four European stock markets (UK, France, Germany and Spain) and US. I am testing the relationship in pairs and weirdly I am getting the same results when testing with the same dependent variable (please see the attached photo). For example I have the same result for the following pairs US-Spain, UK-Spain, Germany-Spain, France-Spain. Any idea why? Is the test valid at all?

Here is a part of the formula:

group group1
group1.add lnfr
call greghansen(lnes,group1,4,"aic",6)

Each time you run the code, you populate group1 with additional dependent variables. Make sure that you drop the second dependent variable after each run. The following snippet of code might be more useful:

Thanks for your help Trubador.

So in my case I use group "group1" instead the "x" in the suggested code..? weirdly I can run the program with "x" as well as "group1" but the x folder in my workfile is empy..

mode quiet
%y1 = "lnes"
%y2 = "lnfr"
group group1.add {%y2}
call greghansen({%y1},group1,4,"aic",6)
group1.drop {%y2}
'... [rest of the program]

My new results look much better. I used first country in each row as independent variable which I thought is the right think to do.. Would you suggest otherwise?

llenk01 wrote:So in my case I use group "group1" instead the "x" in the suggested code..? weirdly I can run the program with "x" as well as "group1" but the x folder in my workfile is empy..

That is because we empty the group after we are done. Otherwise it would keep adding new variables:

llenk01 wrote:I used first country in each row as independent variable which I thought is the right think to do.. Would you suggest otherwise?

Since this is a cointegration analysis, it should not matter. However, you can always try the other way around to see if there is a significant change in the results.

Thanks again Trubador - I am really happy with the outcome and the results.

Dear Mr. Trubador!

Plese kindly help me fix the error " Near Singular matrix error". Regressor maybe perfectly collinear in "DO_GHC.LS YC (@trend > 43-2)G". I attached my Work file and GH test code below.

Thank you in advance for your prompt attention! I'm looking forward to hearing from you soon!

Best Regards!
Phuong Ha

One of your variables (lex) is causing the problem. There is nothing I can do about it.

trubador wrote:One of your variables (lex) is causing the problem. There is nothing I can do about it.

Thank you for your advice! But when I remove the variable lex, this error still appears. Please kindly help me if removing the lex can make the GH test workable.

Best Regards!
Phuong Ha

You need to empty the group after you are done. See the previous thread: posting.php?mode=reply&f=15&t=976#pr45243

First of all, thank you for enabling GH cointegration test add-in for Eviews.

I just have one (fairly technical) question regarding break dates. Does the identified date refer to the last date of the old regime or the first date of the new regime?

I understand that Eviews generally (for instance for unit root tests with breakpoint) defines break date as the first date for the new regime. I was just wondering weather this is also the case for GH cointegration test?

First date of the new regime.

Thank you.

Cheers.