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RE: st: Zero Inflated Negative Binomial Model on Panel Data?


From   Sandip Basu <sb4@u.washington.edu>
To   statalist@hsphsun2.harvard.edu
Subject   RE: st: Zero Inflated Negative Binomial Model on Panel Data?
Date   Tue, 18 Jul 2006 13:42:26 -0700 (PDT)

Thanks, bw, for the effort in looking up the reference. You are probably right about the panel data option not being available in zero inflated models. Anyway, I should heve been more specific...... the program did not recognize the "re" or "fe" command together with "zinb". Without "re" or "fe" there was no mention of the number of groups in the output. Hence, I was hoping that someone had a suggestion for an alternative or additional command that would recognize the group memebership in the panel data.

Cheers, Sandip


On Tue, 18 Jul 2006, b. water wrote:

sandip,

there was a recent thread on "responses to new users" that may be relevant or of note to you to increase the likelihood of having your queries answered.

i used stata 8.2 and had never before had to run zip or zinb but a quick check on [R] did not show random effects option, unless it was built-in into the command itself.

but "I was wondering if it was possible to run a zero inflated negative binomial model on panel data with a random effects specification." would come under "why not just run it on your panel data and post the lists the outputs/problems along with your queries" response. i am almost certain that would elicit more response than the rather broad "Any comments or suggestions..."

perhaps then experienced listers can better advice you either with a work-around or better model specifications etc to help you.

best wishes,
bw




----------------------------------------
Date: Mon, 17 Jul 2006 09:46:38 -0700
From: sb4@u.washington.edu
To: statalist@hsphsun2.harvard.edu
Subject: st: Zero Inflated Negative Binomial Model on Panel Data?

Hi all,

I posted this enquiry about a week back but did not get any response. Hoping for better luck this time. I was wondering if it was possible to run a zero inflated negative binomial model on panel data with a random effects specification. I tried the "zinb" command but did not get it to consider group effects. Any comments or suggestions will be really appreciated.

Cheers, Sandip

Sandip Basu
Department of Management
University of Washington




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