> -- Gili Greenberg wrote:
> > I am looking to estimate an equation such as the
> > following:
> >
> >
> y=beta*[x0+delta*x1+delta^2*x2+delta^3*x3+...+delta^10*x10]+gama*
> > [z0+delta*z1+delta^2*z2+...+delta^10*z10]
> >
> > using panel data.
>
> --- On Mon, 26/10/09, Nick Cox wrote:
> > It does look like a case for -nl- to
> > me.
>
> Normally yes, but Gili asked for doing this with panel
> data.
There is one case where -nl- might be the solution, and
that is when there is only one y for each unit (person/
company/ant/whatever), for example when it is the end
state after some growth process. In that case you don't
have a panel structure in your model, as you just have
one observation per person, and you can just use -nl-.
-- Maarten
--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany
http://www.maartenbuis.nl
--------------------------
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