Page 1 of 1
Equation System Estimation
Posted: Sat Feb 20, 2016 3:59 am
by wangwz
I am now testing a system of regression in Eviews and it generates several tables. The first table gives t-stat, sd, etc. as usual. However, I am not quite sure what the null hypothesis in this test.
Re: Equation System Estimation
Posted: Sat Feb 20, 2016 2:03 pm
by EViews Gareth
Your question makes little sense.
Re: Equation System Estimation
Posted: Wed Feb 24, 2016 7:10 am
by wangwz
Your question makes little sense.
Hi, I attached a picture and my question is the t-stat (circled). I don't quite understand the null hypothesis for the t-stat.
Re: Equation System Estimation
Posted: Wed Feb 24, 2016 7:10 am
by wangwz
Your question makes little sense.
Re: Equation System Estimation
Posted: Wed Feb 24, 2016 7:48 am
by EViews Gareth
The coefficient is zero
Re: Equation System Estimation
Posted: Wed Feb 24, 2016 12:38 pm
by wangwz
The coefficient is zero
so you mean the coefficients in the system are jointly zero?
Re: Equation System Estimation
Posted: Wed Feb 24, 2016 1:02 pm
by EViews Gareth
No.
The t-statistic on the line that starts with C(1) is testing whether C(1) is zero.
The t-statistic on the line that starts with C(2) is testing whether C(2) is zero.
The t-statistic on the line that starts with C(3) is testing whether C(3) is zero.
The t-statistic on the line that starts with C(4) is testing whether C(4) is zero.
It is a complicated system.
Re: Equation System Estimation
Posted: Thu Feb 25, 2016 3:37 am
by wangwz
No.
The t-statistic on the line that starts with C(1) is testing whether C(1) is zero.
The t-statistic on the line that starts with C(2) is testing whether C(2) is zero.
The t-statistic on the line that starts with C(3) is testing whether C(3) is zero.
The t-statistic on the line that starts with C(4) is testing whether C(4) is zero.
It is a complicated system.
Thanks very much. In this sense, may I ask how I can test whether C(1)s are jointly zero in this system?
Re: Equation System Estimation
Posted: Thu Feb 25, 2016 7:08 am
by startz
View/Coefficient diagnostics/Wald
Re: Equation System Estimation
Posted: Thu Feb 25, 2016 8:42 am
by wangwz
View/Coefficient diagnostics/Wald
Thanks very much for your reply. May I ask what I should type in the Wald test? I want to test whether in the system of equations, c(1)s from all individual equations are jointly zero.
Re: Equation System Estimation
Posted: Thu Feb 25, 2016 8:47 am
by startz
c(1) only takes on one value, even if it appears in multiple equations.
Re: Equation System Estimation
Posted: Thu Feb 25, 2016 8:49 am
by wangwz
c(1) only takes on one value, even if it appears in multiple equations.
So you mean actually the coefficients are identical across all equations in this system?
Re: Equation System Estimation
Posted: Thu Feb 25, 2016 8:51 am
by startz
Yes. If you want different coefficients give them different numbers.
Re: Equation System Estimation
Posted: Thu Feb 25, 2016 9:22 am
by wangwz
Yes. If you want different coefficients give them different numbers.
I see. Thanks very much! :D