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st: RE: mfx after xtnbreg and how to compute predicted Y


From   "Nick Cox" <[email protected]>
To   <[email protected]>
Subject   st: RE: mfx after xtnbreg and how to compute predicted Y
Date   Sun, 19 Oct 2008 19:21:09 +0100

-mfx- is giving you extra information for the model you just ran. 

The help for -xtnbreg postestimation- indicate how to get predictions in Stata. There is no need to resort to any other software. 

Nick 
[email protected] 

Pek-Hooi Soh

I have a count panel data model with interaction terms where the terms
are mean centered.  

I estimated the full model by -xtnbreg- and ran -mfx-.  The marginal effect
table presents the same coefficients and standard errors as the table for
-xtnbreg-. Is this possible?

If I do get the correct -mfx- output, how do I compute predicted Y? Do I have
compute y = exp(XB) where B stores marginal effects separately in Excel ?

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