A negative binomial model for time series of counts

R. A. Davis, R. Wu
2009 Biometrika  
We study generalized linear models for time series of counts, where serial dependence is introduced through a dependent latent process in the link function. Conditional on the covariates and the latent process, the observation is modelled by a negative binomial distribution. To estimate the regression coefficients, we maximize the pseudolikelihood that is based on a generalized linear model with the latent process suppressed. We show the consistency and asymptotic normality of the generalized
more » ... near model estimator when the latent process is a stationary strongly mixing process. We extend the asymptotic results to generalized linear models for time series, where the observation variable, conditional on covariates and a latent process, is assumed to have a distribution from a one-parameter exponential family. Thus, we unify in a common framework the results for Poisson log-linear regression models of Davis et al. (2000) , negative binomial logit regression models and other similarly specified generalized linear models.
doi:10.1093/biomet/asp029 fatcat:ojbuobi6wbhxtj7silj2kr6fu4