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Re: st: A question about -margins-


From   Maarten Buis <maartenlbuis@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: A question about -margins-
Date   Tue, 27 Mar 2012 09:17:05 +0200

On Mon, Mar 26, 2012 at 11:19 PM, Angelica Calle wrote:
> I have been using the command -heckprob- to
> get this estimates (my dependent variable is dichotomus), and the
> command -margins, dydx(*) predict(pcond)- to obtain the marginal
> effects. I know that this calculation (estimating the marginal
> effects) must consider the parameters of both equations (selection and
> outcome equation) and I would like to be sure that the command
> -margins, dydx(*) predict(pcond)- does that. I have been searching if
> this is the case or if I have to use something else, unfortunately I
> was not able to identify if margins considers both equations. I would
> really appreciate if you guys could give me some reference to have
> certainty on this issue.

Do you have any reason to believe that this is not the case? If you
want a reference on what -margins- does than the authoritative
reference is the manual entry for -margins-. In addition you will
probably need to look at the manual entry for -heckprob
postestimation-, and in particular the predict options listed there.

-- Maarten

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


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