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Re: st: comparing regression coefficients across two models with the same dependent variables


From   Orian Brook <ob11@st-andrews.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: comparing regression coefficients across two models with the same dependent variables
Date   Mon, 6 May 2013 14:31:48 +0100

Hi James

Can't help with -suest- I'm afraid, but I sympathise with your problems with
interaction effects in a non-linear model

On my supervisor's suggestion to explore and interpret interaction effects
I've been using the -prvalue- command, part of the user-written spostado by
J Scott Long, see http://www.ats.ucla.edu/stat/stata/faq/logit2by2.htm

Hope this helps

Orian 

> Hi all,
> 
> This may seem simple, but the seems to be no consensus on it. I have
> two regressions with the same dependent variables
> 
> I want to compare the same independent variable across these two models:
> 
> Y=a+b0X+b1Z
> Y=a+b0X+b1W
> 
> Now, I want to compare b0 across these two models. Any idea if this
> can be done in Stata?
> 
> Comparing two coefficients in the same model is rather discussed and
> clear, but how about the case I mentioned? (the reason I am doing this
> is that I am splitting my sample instead of using interaction effects)
> 
> I appreciate your help
> 
> James

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