st: random and fixed effects

[demariaf@unical.it]

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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