Score tests for overdispersion in the bivariate negative binomial models

Byoung Cheol Jung, Myoungshic Jhun, Sang Moon Han

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

In this paper, we derive the score test statistic for testing overdispersion and covariance parameter in the bivariate negative binomial (BNB) models. The testing procedures are extended to the BNB regression models. Two empirical examples with and without covariates are provided to illustrate the results.

Original languageEnglish
Pages (from-to)11-24
Number of pages14
JournalJournal of Statistical Computation and Simulation
Volume79
Issue number1
DOIs
StatePublished - Jan 2009

Keywords

  • Bivariate Poisson
  • Bivariate negative binomial
  • Overdispersion
  • Score test

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