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st: mlogit with alternative specific variables

From   "Peter Haan" <[email protected]>
To   [email protected]
Subject   st: mlogit with alternative specific variables
Date   Mon, 08 Dec 2003 11:29:00 +0100

Dear Statalist,
my question is about the multinomial logit model.
My model includes both, individual and alternative specific variabels. So far I have estimated my model with clogit, which works fine.
Now I want to translate the clogit model into a mlogit including the alternative specific variables. The reason for the model chnage is that eventually I want to estimate a discrete time hazard model, which can be written as a mlogit.
As far as I understand Maddala (1983) mlgoit and clogit should be equivalent with both individual and alternative specific variabels.
However, so far I did not get the equivalent probabilities when I am using mlogit, the problem I suppose is the wrong data structure.
My structure: persnr outcomevariable (1 or2 or3) indspecific vars X(kat1) X(kat2) X(kat3)
Hence, each ind has one row

Do you have an idea in which form I need to construct my data?

thank you very much for you help


Peter Haan
Wissenschaftlicher Mitarbeiter
Deutsches Institut f�r Wirtschaftsforschung (DIW Berlin)
German Institute for Economic Research
Abt. Staat / Dept. Public Economics
K�nigin-Luise-Stra�e 5, 14195 Berlin
Tel. +49/30/89789-165, Fax. +49/30/89789-114

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