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Re: st: control a variable in stata


From   Nora Reich <nhmreich@googlemail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: control a variable in stata
Date   Sat, 21 Apr 2012 21:33:42 +0200

As far as I know, -poisson- is for skewed distributions, and salary
distribution in general often fulfills this requirement, but salary of
NBA players might show a different distribution. The distribution can
be checked, e.g. with the command

-histogram salary-

(for more information type -help histogram-).

Andy, I would compare the assumptions and requirements of different
estimation strategies (OLS, poisson) and find out which fits better
with the data.

I would also check which estimations strategies are used by similar
papers, and why.

Apart from -poisson- and -regress-, I cannot think of any at the
moment that have to be considered for your salary-estimations.
However, if there was something like a "minimum wage" for NBA players,
i.e. salary is censored,  -tobit- would be an alternative.

Best regards
Nora




-- 
Nora Reich
www.nora-reich.de
Publications:
http://www.nora-reich.de/publikationen.html
http://www.hwwi.org/ueber-uns/team/forscher/nora-reich/publications.html
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