Bertanha, Marinho; Moser, Petra - 2014
of health and unemployment. Along with negative binomial, Poisson panel regressions are a preferred method of analysis … because the Poisson conditional fixed effects maximum likelihood estimator (PCFE) and its sandwich variance estimator are … consistent even if the data are not Poisson-distributed, or if the data are correlated over time. Analyses of counts may however …