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st: AW: how to get marginal effect when dependent variable has ln function?


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: AW: how to get marginal effect when dependent variable has ln function?
Date   Sun, 21 Jun 2009 16:06:32 +0200

<> 

Well, invoking any special command here does not improve on the output that
you already have in hand from your -regress- command. The coefficients that
you see there are the percent increase in y given a one unit increase in the
respective covariate (semielasticity).



HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von gjhxmu@sina.com
Gesendet: Sonntag, 21. Juni 2009 08:28
An: statalist
Betreff: st: how to get marginal effect when dependent variable has ln
function?

Dear statalists,
I have an equation below:
lny=a0+a1*x1+a2*x2+e

and I typed below in the stata:

g lny=ln(y)
reg lny x1 x2

However, how can I get the marginal effect of x1 on y? 

Thank you a lot!

Sincerely,
from Rose

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