The Relative Performance of Poisson and Negative Binomial Regression Estimators

McKinley Blackburn ()

Oxford Bulletin of Economics and Statistics, 2015, vol. 77, issue 4, 605-616

Abstract: type="main" xml:id="obes12074-abs-0001">

Negative binomial estimators are commonly used in estimating models with count-data dependent variables. In this paper, sampling experiments are used to evaluate the performance of these estimators relative to the simpler Poisson estimator in finite-sample situations. The results do not suggest a clear preference for negative binomial estimators in situations in which the underlying dependent variables are overdispersed, unless the researcher is comfortable in assumptions about the precise form of the overdispersion.

Date: 2015
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