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st: nbreg with fixed effect vs xtnbreg,fe


From   Shikha Sinha <shikha.sinha414@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: nbreg with fixed effect vs xtnbreg,fe
Date   Mon, 6 Feb 2012 12:55:22 -0800

Hi All,

I am trying to model count data with county fixed effect. It is a
cross-sectional data. I want to know if

xi: nbreg DV IV control i.county

is same as

xtnbreg DV IV control, fe i(county)

I get different results. Please advise what is the best way to model
count data with fixed effect.

Thanks in advance.

Shikha
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