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st: AW: marginal effects after xtlogit


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: AW: marginal effects after xtlogit
Date   Mon, 30 Nov 2009 22:54:49 +0100

<> 

Note that the default prediction after -xtlogit, re- is the linear
prediction, as seen in -help xtlogit postestimation-. For -logit-, it is the
probability. I guess this is the source of the confusion: -margins- uses the
default -predict- option after the respective estimation command, unless
instructed otherwise...




HTH
Martin

-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Shuaizhang Feng
Gesendet: Montag, 30. November 2009 22:13
An: statalist@hsphsun2.harvard.edu
Betreff: st: marginal effects after xtlogit

Dear list:

I just found that after using xtlogit (re), the command "margins, dydx(*)"
produce identical average marginal effects as the estimated coefficents.
This is for both discrete and continuous explanatory variables. Using the
same command following logit seems OK. Is this some kind of error on stat's
side? 

Thank you for any response.

Shuaizhang


      
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