Try the following (I just use ZIP and ZINB on my APSA paper):
Greene, William H. 1994. "Accounting for Excess Zeros and Sample
Selection in Poisson and Negative Binomial Regression Models."
New York University Department of Economics Working Paper EC-
94-10.
Lambert, Diane. 1992. "Zero-Inflated Poisson Regression, With an
Application to Defects in Manufacturing." Technometrics
34:1-14.
King, Gary. 1989c. "Variance Specification in Event Count Models: From
Restrictive Assumptions to a Generalized Estimator." American
Journal of Political Science 33:762-784.
Long J., Scott. 1997. Regression Models for Categorical and Limited
Dependent
Variables. Advanced Quantitative Techniques in the Social
Sciences, Volume 7.
Thousand Oaks, CA: Sage Publications.
Vuong, Quang H. 1989. "Likelihood Ratio Tests for Model Selection and
Non-Nested Hypotheses." Econometrica 57:307-333.
Zorn, J. Christopher. 1996. "Evaluating Zero-Inflatedand Hurdle Poisson
Specifications." Midwest Political Science Association. April
18-20. http://web.polmeth.ufl.edu/papers/96/zorn96.pdf
Zorn, J. Christopher. 1998. An Analytic and Empirical Examination of
Zero-Inflated and Hurdle Poisson Specifications. Sociological
Methods and Research 26(February): 368-400.
For theory, start from Lambert, Greene and King. Applied Long, Zorn.
Vuong will be a must between zip and Poisson.
Hope this helps.
Karl Ho
School of Economic, Political and Policy Sciences
University of Texas at Dallas
972-883-2017
-----Original Message-----
From: Political Methodology Society [mailto:[log in to unmask]] On
Behalf Of Anna Maria Ortiz
Sent: Wednesday, August 30, 2006 AM 10:59
To: [log in to unmask]
Subject: [POLMETH] zero-inflated models?
Good morning -
Does anyone have any good references for zero-inflated negative binomial
or Poisson regression models? I'm looking for both applied and
theoretical cites.
Thanks -
Anna Maria
Anna Maria Ortiz, Ph.D.
Senior Statistician
Applied Research and Methods
U.S. Government Accountability Office
(202) 512-2788
[log in to unmask]
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