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st: zinb for xt data?


From   owner-statalist@hsphsun2.harvard.edu
To   undisclosed-recipients: ;
Subject   st: zinb for xt data?
Date   Fri, 10 Nov 2006 10:40:02 -0800

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From: "Jason Yackee" <jyackee@law.usc.edu>
To: <statalist@hsphsun2.harvard.edu>
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Dear all,

I have time series-cross-section (TSCS) count data with a large number of z=
eros.  I am currently estimating my models using -xtnbreg- and -xtpoisson-.=
   I am interested in exploring whether it makes sense to separately model t=
he zero-generating process, and I would like to estimate the model using a =
zero-inflated model, using either the -zip- or -zinb- commands.  I am unabl=
e to find an -xt- version of either estimation routine.  Is anyone aware of=
  any user-written add-ons, or of any other acceptable way to adopt the zero=
-inflated methodology to panel data?

Jason Webb Yackee
Fellow
Gould School of Law
University of Southern California
Los Angeles, California 90089-0071
Tel: 213-740-2865
Fax: 213-740-5502
Cell: 919-358-3040
email: jyackee@law.usc.edu
=A0



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