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Re: st: average marginal efefcts after mi


From   Maarten Buis <maartenlbuis@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: average marginal efefcts after mi
Date   Mon, 4 Jul 2011 21:46:58 +0200

On Mon, Jul 4, 2011 at 9:28 PM, Sunniva Andersen wrote:
> Trying to obtain margins after mi command in stata 11.
> below my code and error message.
>
> mi estimate:logit employment alder barn
> margins, dydx ( alder barn)
>
> error message last estimates not found

You'll get results by typing

mi estimate, post : logit employement alder barn

However, I am not sure whether the results mean the same thing as in
normal non-imputed datasets. One problem I can imagine is that average
marginal effects need to be averaged, and I am not sure whether your
marginal effects are averaged over the appropriate sample.

Alternatively you can interpret the odds ratios, which I expect to be
less problematic

mi estimate, or : logit employement alder barn

Hope this helps,
Maarten

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany


http://www.maartenbuis.nl
--------------------------
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