A Stochastic Brand Choice Framework for Econometric Modeling of Time Series Market Share Behavior
构建了一个可从个体品牌选择行为加总到市场份额的随机模型，并展示了如何运用现代时间序列分析方法在多种备选模型中进行选择，对研究市场动态和消费者行为的学者有参考价值。
The two main purposes of this article are (1) to develop a model of individual behavior in the choice of brands which can be aggregated over consumers to produce a model of market share behavior of brands and (2) to show how modern multiple time series analysis can be applied within the general structure we develop to choose among specific alternative models. Starting at the individual level, we devise a stochastic brand choice model. The character of consumer heterogeneity is specified, permitting aggregation. The aggregation allows a model of aggregate brand switching to be derived as well as a model of market share behavior through time. Panel data are analyzed in terms of brand switching and market share behavior.