Outcomes from Eviews commands in a program

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remuct
Posts: 27
Joined: Fri May 12, 2017 6:47 am

Outcomes from Eviews commands in a program

Postby remuct » Thu Apr 29, 2021 12:24 pm

Hello,

I'm performing a system estimation of several equations using the SUR method with common structural breaks. In order to combine a system model with structural breaks I wrote a program file following methods by Baltagi et al (2015) and Bai and Perron (1998).

To get the standard deviation of the residuals of each equation k, I used the scalar value from System Data Members : @se(k).

However this value is not the same as the S.E. of regression provided at the bottom of Eviews output for the k'th equation after the estimation.

Furthermore, when I ask the covariance matrix of the residuals using @residcov(k,k), the square root of the k'th diagonal element is yet a different value than the two preceding ones.

Shouldn't these three functions give the same number ? If not what are their differences?

Thank you for your response
Best

EViews Gareth
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Re: Outcomes from Eviews commands in a program

Postby EViews Gareth » Thu Apr 29, 2021 1:24 pm

The reported kth equation SE should match the system.@se(k) value (and does in a quick test).

The residual covariance matrix will differ because of a degree of freedom correction.
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remuct
Posts: 27
Joined: Fri May 12, 2017 6:47 am

Re: Outcomes from Eviews commands in a program

Postby remuct » Thu Apr 29, 2021 2:45 pm

Thank you Gareth, this was useful.


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