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RE: st: marginal effects for ordered logit


From   "Markiewicz, Agnieska" <Agnieszka.Markiewicz@econ.kuleuven.ac.be>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: marginal effects for ordered logit
Date   Thu, 4 Nov 2004 16:05:25 +0100

Dear Marteen,

I was actually trying to plot my results but they don't look very
convincing. Accordingly to your remark, the probability of belonging to
one of the classes changes and my graphs don't provide any clear
explanation. Thus I still would like to interpret my results without
graphs. 

Aga
-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of maartenbuis
Sent: Thursday, November 04, 2004 3:15 PM
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: marginal effects for ordered logit


Dear Aga,

I think that the most meaningfull way to present your results would
be to plot the probabilities of belonging to the various groups for
diffrent values of your explanatory variable. In an ordered logit the
effect of an explanatory variable on the probability of belonging to
a group can first rise and than decline (or vise versa) even if the
explanatory variable is entered with only a linear term, I have no
idea how a quadratic term complicates that relationship.

Maarten

--- Agnieszka.Markiewicz@e...> wrote:
> I'm estimation an ordered logit and using the standard mfx syntax I
> obtain the marginal effects for all outcomes and all repressors.
One of
> my explanatory variables is a squared one and I don't know how to
> interpret its marginal effect's coefficient.




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