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Generating standard errors in table...

Posted: Mon Jun 23, 2014 10:01 am
by SEE992
Looking like I'm heading back to the drawing board, but thought I'd post here before I scratch what I've got:

I'm outputting some estimation results to a table for a range of specifications, and producing a long-run estimate of certain variables, which is a function of two previous OLS estimates: say Beta3= Beta2/Beta1. The relevant code below is creating the desired LR coefficients, %coefLR... so far, so good.

Code: Select all

!LRvariables=(!variables/2)-1 for !z=2 to !LRvariables %coefLR="" !coefLR1=@round({%pool}.@coefs(2*!z+1)*!decimals)/!decimals !coefLR2=@round({%pool}.@coefs(2)*!decimals)/!decimals %coefLR=@str(!coefLR1/!coefLR2) _result_large(5+!z+!variables+!posi_down,1)=_var(2*!z+1,1)+": LR effect" _result_large(5+!z+!variables+!posi_down,!position+1)=%coefLR next

What I'd like to do now is generate standard errors (and as a result, t-statistics) for these new LR coefficients. My econometric theory is a bit rusty but I can't recall any algebraic equation that will get me from the standard errors of the original 2 estimators Beta1 and Beta2, to the standard error of Beta3.

Therefore, I'm looking for a way to directly generate standard errors for the estimations of Beta3. Any ideas?

Re: Generating standard errors in table...

Posted: Mon Jun 23, 2014 10:23 am
by EViews Gareth
Use the Delta Method. Google will find descriptions, such as:
http://www.ats.ucla.edu/stat/r/faq/deltamethod.htm

Re: Generating standard errors in table...

Posted: Mon Jun 23, 2014 10:39 am
by SEE992
Cheers!