Statalist The Stata Listserver


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: excess zeroes in panel models for count data


From   "Ángel López Nicolás" <angel.lopeznicolas@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: excess zeroes in panel models for count data
Date   Mon, 29 May 2006 12:56:10 +0200

I am trying to estimate a count data model with panel data and would
like to try specifications that allow for excess zeroes (zero-inflated
and hurdle models) with fixed unobserved heterogeneity over time. I
can see that stata has commands to deal with excess zeroes in cross
sectional models  (zinb, zip, hnblogit, etc.) and also has some basic
panel models for count data (xtpoisson y xtnbreg). My question is: is
it possible to combine the specs. for excess zeroes with fixed or
random effects. If so, are there commands or variations of commands
that deal with this? Thanks in advance.


--
Ángel López Nicolás
Departamento de Economía
Facultad de Ciencias de la Empresa
Universidad Politécnica de Cartagena
Paseo Alfonso XIII, 50
30203 Cartagena
Tel. 968 325484
Fax. 968 325781

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index