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st: How to do kernel matching difference in differences


From   mukta mukherjee <muktabondhu@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: How to do kernel matching difference in differences
Date   Fri, 21 May 2010 17:54:53 -0400

Hi!
I am trying to do kernel matching difference in differences.
After trimming the common support by psmatch2 I am stuck. The codes are the
following :
xi: psmatch2 treat lnsale ln_fa i.state_n i.year n_firm if(year<=2005 ),
kernel(epan) out(z1og) common logit ties

 I do not know how to assign the weights to the my variables as with aweight
command i cannot do bootstrapping of the standard errors, which is
essential. Can anyone help me out? Any suggestion or help would be highly
appreciated.
Mukta
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