DOI QR코드

DOI QR Code

Bivariate Zero-Inflated Negative Binomial Regression Model with Heterogeneous Dispersions

서로 다른 산포를 허용하는 이변량 영과잉 음이항 회귀모형

  • Kim, Dong-Seok (Department of Mathematics, Kyonggi University) ;
  • Jeong, Seul-Gi (Department of Mathematics, Kyonggi University) ;
  • Lee, Dong-Hee (Department of Business Administration, Kyonggi University)
  • Received : 20110700
  • Accepted : 20110800
  • Published : 2011.09.30

Abstract

We propose a new bivariate zero-inflated negative binomial regression model to allow heterogeneous dispersions. To show the performance of our proposed model, Health Care data in Deb and Trivedi (1997) are used to compare it with the other bivariate zero-inflated negative binomial model proposed by Wang (2003) that has a common dispersion between the two response variables. This empirical study shows better results from the views of log-likelihood and AIC.

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