A bivariate zero-inflated negative binomial regression model for count data with excess zeros

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• 作者：Wang ; Peiming
• 关键词：Bivariate negative binomial distribution ; Count data with excess zeros ; Correlation ; EM algorithm ; Overdispersion ; C35 ; I10
• 刊名：Economics Letters
• 出版年：2003
• 出版时间：March, 2003
• 年：2003
• 卷：78
• 期：3
• 页码：373-378
• 全文大小：51.3 K

文摘

This paper proposes a bivariate zero-inflated negative binomial regression model for count data with excess zeros, and provides an estimation method based on the EM and quasi-Newton algorithms. An application to the analysis of health-care utilization is given.