OVERDISP: Stata module to detect overdispersion in count-data models using Stata

Luiz Paulo Fávero (lpfavero@usp.br) and PatrÌcia Belfiore (patricia.favero@ufabc.edu.br)
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PatrÌcia Belfiore: Center of Engineering, Modeling and Applied Social Sciences, Federal University of ABC, São Bernardo do Campo, Brazil

Statistical Software Components from Boston College Department of Economics

Abstract: overdisp provides a direct alternative to identify overdispersion in Stata, being a faster and an easier way to choose between Poisson and binomial negative estimations in the presence of count-data. Thus, overdisp can be implementd without the necessity of previously estimating Poisson or binomial negative models.

Language: Stata
Requires: Stata version 15
Keywords: overdispersion; count-data models (search for similar items in EconPapers)
Date: 2018-06-19
Note: This module should be installed from within Stata by typing "ssc install overdisp". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
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Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/o/overdisp.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/o/overdisp.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/m/mus17data.dta sample data file (application/x-stata)

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