. This set up calls for a count data model. A standard candidate for a count data model would be the Poisson regression model … (GoF- test), the likelihood ratio test (LR-test) and the Vuong-test. When comparing the standard Poisson regression model …

), Maddala (1983)) is the Poisson regression model. This is based upon the probability mass function of the Poisson distribution … function: (1) () ... 2, 1, ,0 ; i === − y !y λe yYP i y i λ ii ii For the Poisson regression model, it is usual to … one to choose. The Poisson regression model is nested within the negative binomial model, and the extra restriction …

recent years. The Poisson regression model for modelling an integer count dependent variable is an obvious example where the … the first order condition in the Poisson regression model. An alternative moment estimator is obtained by specifying the …