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Re: st: Marginal effects with outreg or estout using the new margins command


From   Federico Belotti <f.belotti@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Marginal effects with outreg or estout using the new margins command
Date   Sat, 27 Jul 2013 17:46:32 +0200

Danielle
try to add the option -post- to the -margin- command...

Federico 

Il giorno 27/lug/2013, alle ore 17:33, Danielle Li <danielle-li@kellogg.northwestern.edu> ha scritto:

> Dear all,
> 
> I'd like to output marginal effects from a fixed effects regression.
> I have tried 4 approaches involving the outreg2, estout, mfx, and
> margins commands and none of them work (described below).
> 
> I would be really grateful if anyone has any ideas.  Ideally, I'd to
> report both the coefficients and the marginal effects in the same
> output table, but I am also happy to just output the marginal effects
> and coefficients into separate tables and combine later.
> 
> Thanks so much,
> Danielle
> 
> 
> 
> 1.  Using margins with outreg2
> 
> areg y x [aweight=weight], cluster(is) absorb(is)
> margins, eyex(x) atmeans
> outreg2 x using filename, se nolabel bdec(3) rdec(3)  nocons excel
> replace margin
> 
> This command runs without error but when I look at my outreg file,
> there are no coefficients reported (e.g. the space where the result is
> is just blank)
> 
> 2.  Using mfx instead of margins
> 
> areg y x [aweight=weight], cluster(is) absorb(is)
> mfx, eyex predict
> outreg2 x using filename, se nolabel bdec(3) rdec(3) excel replace mfx
> 
> This fails because I get this error using mfx
> 
> mfx, eyex
> default predict() is unsuitable for marginal-effect calculation
> r(119)
> 
> Note: any predict option I explicitly try results in the same error.
> 
> 3.  Using estout with margins
> 
> eststo raw: areg y x [aweight=weight], cluster(is) absorb(is)
> eststo mfx: margins, eyex(x) atmeans
> estout raw mfx using filename, replace
> 
> This runs without error, but eststo raw and eststo mfx end up saving
> the same output even though, when I run the margins, command, stata
> successfully reports elasticities that are different from the
> coefficients in the areg step. So I get two columns with the same
> information.
> 
> 4.  All of the above with xtreg instead of areg. I get the same error
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