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st: using qreg to compute difference in medians


From   Raja Chandrashekar <ciimplex@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: using qreg to compute difference in medians
Date   Sun, 2 Nov 2003 12:49:24 -0800 (PST)

Hello
I have a sample of firms which went public and a
control sample of 
firms that did not go public. I have annual data on
total assets of 
these firms. I want to compute the difference between
the median 
values of total assets for the public companies and
the companies 
that did not go public. And I want to compute these
differences for 
two time periods, for three years after the firms went
public and 
five years after the firms went public. So I have
dummy variables 
identifying the third year and the fifth year. 
I want to know how I could use the qreg command to
compute these 
differences. Pleaseeee help.


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