Re: st: marginal effect Nested Logit regression

[Maarten buis <maartenbuis@yahoo.co.uk>]

--- On Tue, 11/1/11, alfredo jimenez palmero wrote:
> i got a comment from a reviewer i do not really understand.
> He says:
> 
> "The author does not indicate whether the coefficients in
> Table 1 are marginal effects or not".
> 
> Table 1 includes the result from a Nested and a Conditional
> Logit Model. What does that "marginal effect" mean? Should
> the coefficient I got from the NLM and the CLM be
> interpreted in a different way than in ordinary
> regressions?

Yes, you are modeling log odds rather than expected values, 
so the correct interpretation takes quite a bit of effort
in these types of models. If you are new to odds ratios,
I would start with trying to understand the results from
a simple -logit- model, move on to a mlogit, and than 
generalize that to your -nlogit- and -clogit- models. 

Hope this helps,
Maarten

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

http://www.maartenbuis.nl
--------------------------


      

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