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Abstract:
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This paper surveys parametric and semiparametric methods for multivariate count data and ordered response models, with particular emphasis on bivariate regression models. The paper covers cross sectional and, to some extent, panel data methods. The study emphasizes models that allow for both positive and negative correlations between count dependent variables. Model extensions that accommodate excess of zeros, truncation, and censoring are considered. Illustrative examples, results from Monte Carlo experiments and applications are discussed.
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