Dirichlet-Multinomial Regression

Paulo Guimaraes () and Richard C. Lindrooth ()

Econometrics from EconWPA

Abstract: In this paper we provide a Random-Utility based derivation of the Dirichlet-Multinomial regression and posit it as a convenient alternative for dealing with overdispersed multinomial data. We show that this model is a natural extension of McFadden's conditional logit for grouped data and show how it relates with count models. Finally, we use a data set on patient choice of hospitals to illustrate an application of the Dirichlet-Multinomial regression.

Keywords: dirichlet-multinomial; grouped conditional logit; hospital choice; overdispersion (search for similar items in EconPapers)
JEL-codes: C25 C21 I11 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-dcm and nep-ecm
Date: Written 2005-09-01
Note: Type of Document - pdf; pages: 24
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Persistent link: http://EconPapers.repec.org/RePEc:wpa:wuwpem:0509001

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