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Re: st: not concave Poisson estimation
From
Morten Hesse <[email protected]>
To
[email protected]
Subject
Re: st: not concave Poisson estimation
Date
Fri, 10 Sep 2010 12:56:24 +0200
there are exporters, importers or years, where you have no variation.
Greetings
Morten
Den 10-09-2010 12:42, Estrella Gomez skrev:
Dear statalist:
I have a panel with 5400 pair of countries and 43 years. I am trying
to estimate a Poisson model but when I assume random effects and
specify:
xtreg depvar indepvars i.exporter i.importer i.year, re
Stata keeps iterating the function over the same values during hours
and never converge
How can I solve this?
Thanks in advance
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