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Re: st: Comparing two generalized ordered logit mfx


From   Christian Bustamante <cdeb77@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Comparing two generalized ordered logit mfx
Date   Thu, 2 Jul 2009 00:13:55 -0500

Hi Richard,

Thanks for your reply. I read the threads you told me, but in this
example is only for one regresion, so there is only one coefficients
covariance matrix e(V)... I have two: one for year=1 and another for
year=2. Also, here uses the option -tracelvl- with the -mfx- command
to get the second derivates, but for -gologit2- the -mfx- command not
works and the -mfx2- command doesn't have this option (I don't know if
the -marfeff- command does, but I tried to use this after -gologit2-
and it doesn't work too)... What can I do?
Thanks in advance

Bests




On Thu, Jul 2, 2009 at 12:17 AM, Richard
Williams<Richard.A.Williams.5@nd.edu> wrote:
> At 10:38 PM 7/1/2009, Christian Bustamante wrote:
>>
>> Hi Statalisters,
>>
>> I used the -gologit2- command to estimate two generalized ordered
>> logit models with the same variable but in two different years. Then,
>> I ran the -mfx2- command to get the marginal effects of each one. Now,
>> I want to compare statisticaly if there exist differences between the
>> marginal effects of each variable on this models. Can I do that? If
>> yes, How?
>
> I wrote both commands, and darned if I know how.  My guess is that if it can
> be done with mlogit or ologit then the same approach would work with
> gologit2.  May Boggess answered a similar question in 2004, so maybe you can
> figure out how to adapt her advice if nobody has anything simpler:
>
> http://www.stata.com/statalist/archive/2004-11/msg00162.html
>
> http://www.stata.com/statalist/archive/2004-11/msg00169.html
>
> As a sidelight, for commands it supports (which include gologit2), -margeff-
> is faster and more powerful than -mfx2-.  You can get -margeff- from SSC.
>
>
> -------------------------------------------
> Richard Williams, Notre Dame Dept of Sociology
> OFFICE: (574)631-6668, (574)631-6463
> HOME:   (574)289-5227
> EMAIL:  Richard.A.Williams.5@ND.Edu
> WWW:    http://www.nd.edu/~rwilliam
>
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>



-- 
CdeB

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