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Re: st: 3-Level nlogit


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: 3-Level nlogit
Date   Tue, 28 Jul 2009 16:48:24 +0000 (GMT)

No, you need -nlogit- not -xtmelogit-: the word nesting means very 
different things in these two models: In -nlogit- you can think of 
a sequence of decisions where some decisions are nested in others, 
e.g. you first decide between fancy or family restaurants, and 
given that you chose a fancy restaurant you can now choose between Christophers and MadCows. This seems to represent your kind of 
problem, except with an extra level of nesting. In -xtmelogit- the 
nesting refers to the observations: e.g. students are nested in 
classes, which are nested in schools, which are nested in districts, 
etc. This is a multi-level problem, which does not seem to describe 
your situation.

Hope this helps,
Maarten

-----------------------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


--- On Tue, 28/7/09, Brendon Gerding <mutedmuzik@gmail.com> wrote:

> From: Brendon Gerding <mutedmuzik@gmail.com>
> Subject: Re: st: 3-Level nlogit
> To: statalist@hsphsun2.harvard.edu
> Date: Tuesday, 28 July, 2009, 1:09 PM
> Hi Jeph,
> 
> Thanks for your reply, I read the documentation and it
> seems like
> that's what I'm needing. I'm fairly new to Stata though and
> this is
> the first project I am working on, would you mind giving a
> brief
> explanation as to how I would use the xtmelogit command?
> I've tried to
> figure it out but am not sure that what I'm doing is
> right...
> 
> I need to regress employment status of individuals on
> various factors,
> and I suspect that there will be different factors working
> at
> different levels within the employment statuses. The
> breakdown of
> employment status is:
> 
> Population: -> Not Economically Active
>                
> -> Economically Active  -> Unemployed
>                
>                
>                
>    -> Employed
> And then employed may be split further into Formally
> Employed and
> Informally Employed.
> 
> Please could you briefly explain how I could set up this
> regression
> using the xtmelogit. The first draft of my honors
> dissertation is due
> in two weeks, and I am desperately needing these results!
> 
> Thanks for your time,
> Brendon Gerding
> 
> On Mon, Jul 27, 2009 at 1:41 PM, Jeph Herrin<junk@spandrel.net>
> wrote:
> > Look at -xtmelogit- documentation.
> >
> > hth,
> > Jeph
> >
> >
> > Brendon Gerding wrote:
> >>
> >> Hi,
> >>
> >> I am needing to perform a 3-level nested logistic
> regression. So far
> >> all the commands and examples I have seen only
> involve 2 levels.
> >> Please could anyone offer advice on how to set up
> the 3-level nlogit,
> >> or perhaps where I could look for examples of this
> kind of thing?
> >>
> >> Any help would be greatly appreciated.
> >>
> >> Many Thanks,
> >> Brendon Gerding
> >> *
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