On Fri, 17 Oct 2014, Jan Tille wrote:
Well, sorry, I thought I am, because I want to know whether being
above
the median is followed by being above the median and that is binary
(i.e. an LDV), isn't it? Jan
I must confess your problem is not exactly clear to me; I read your
previous message several times and I can't make up my mind on it, but,
like Sven said, I am doubtful as to whether applying a dynamic panel
probit to your data is the right thing to do from a statistical point of
view.
The fact is, it sounds like the unbalancedness of your panel is
endogenous: from what I gather, you'd have a peculiar form of panel
attrition (on entry instead of exit, as is more common), so a few
assumptions for the dynamic panel probit model would be violated and you'd
get inconsistent estimates.
That said: (1) I may be wrong (I usually am) (2) nobody is stopping you
from using a dynamic panel probit model anyway, if only to see what
happens if you do.
Claudia and I will send you our code as soon as we manage to put togther
some decent documentation to it.
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Riccardo (Jack) Lucchetti
Dipartimento di Scienze Economiche e Sociali (DiSES)
Università Politecnica delle Marche
(formerly known as Università di Ancona)
r.lucchetti(a)univpm.it
http://www2.econ.univpm.it/servizi/hpp/lucchetti
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