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From | Morten Hesse <mh@crf.au.dk> |
To | statalist@hsphsun2.harvard.edu |
Subject | Re: st: not concave Poisson estimation |
Date | Fri, 10 Sep 2010 13:06:26 +0200 |
I must learn that I lose the first line when I send to Statalist. Sorry for double posting!
First of all, you should use xtpoisson. Next, you should check if there are exporters, importers or years, where you have no variation.
Greetings Morten Den 10-09-2010 12:56, Morten Hesse skrev:
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 * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/* * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/
* * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/