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Re: st: xttobit with fixed effect???

From   Joseph Coveney <>
To   Statalist <>
Subject   Re: st: xttobit with fixed effect???
Date   Mon, 28 Jul 2003 22:36:01 +0900

David Reinstein asked whether there is a fixed-effect extension to -xttobit-.  
In responding, Steven Stillman mentioned that fixed-effects nonlinear models 
provide inconsistent parameter estimates.

If the list will tolerate a couple of na´ve questions:  not being an 
econometrician, I'm curious as to why a preference for fixed-effects models is 
often expressed for longitudinal data?  Is it because the number of panels in 
econometrics studies is sometimes too few to justify handling panels as a 
random effect?  If so, does it matter that a fixed-effect estimator is not 
consistent, since with a fixed-effect model, prediction and hypothesis testing 
are confined to the panels in the data in-hand?

Joseph Coveney

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