A Purchase Incidence Model with Inverse Gaussian Interpurchase Times
购买间隔服从逆高斯分布的购买发生模型AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确使用家庭消费者面板数据,并对家庭购买间隔及家庭间异质性建模。
购买间隔服从逆高斯分布的购买发生模型AI 解读 ↓
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This paper deals with a new purchase incidence model where the interpurchase time of an individual household is described by a two-parameter inverse Gaussian distribution, and the population heterogeneity is modeled by the natural conjugate family which has truncated t and modified gamma marginals. The model, more flexible than the exponential and one-parameter gamma models previously used for purchase incidence, is applied to consumer panel data on toothpaste purchases and an excellent fit is obtained. A more logical approach is employed for the assessment of consumer heterogeneity than the methods in existing literature.