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Re: st: random and fixed effects


From   David Jacobs <[email protected]>
To   [email protected]
Subject   Re: st: random and fixed effects
Date   Wed, 23 Jan 2008 14:44:35 -0500

No probably because your dependant variable counts for some cases don't change over time.

Dave Jacobs

At 02:14 PM 1/23/2008, you wrote:

Dear Alls,

I am estimating a poisson either  random (xtpoisson) or fixed
(xtpoisson, fe) effects. When I run the random effects model the
observations  are about 88210. Instead when I run the fixed effects
model the observations are about 80230.   Shouldn't I have the same
number of observations?

thank you very much

federica demaria

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