文章基本信息

标题：Distinguishing between state dependence and unobserved heterogeneity in a discrete choice model
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作者：Jose M. Labeaga-Azcona ; Mercedes Martos-Partal
期刊名称：African Journal of Business Management
印刷版ISSN：1993-8233
出版年度：2011
卷号：5
期号：12
页码：4853-4862
DOI：10.5897/AJBM10.1218
语种：English
出版社：Academic Journals
摘要：This paper proposes a methodology to distinguish state dependence from unobserved heterogeneity in the estimation context of a discrete choice model using household scanner panel data. With traditional maximum-likelihood approaches, the individual effects become correlated with the covariates. In contrast, the proposed estimation method formalizes the correlation structure and thereby enables its consideration during the estimation process. In the resulting model, state dependence becomes a less significant variable, and the proposed model yields better measures of predictive performance than a conventional model. The proposed approach is illustrated through an empirical application in marketing.
关键词：State dependence; unobserved heterogeneity; utility theory; choice models