Abstract This paper presents a model of individual consumer choice for separate choice occasions. Contrary to the notion that each choice is essentially independent of its predecessors, dependence is proposed as the key to variety-seeking behavior. As an individual's consumption history evolves, the pattern of attribute accumulations changes, leading to preference for items rich in different attributes at different points in time. The model is operationalized using soft drink consumption diaries, and predicts choices better than a model that ignores choice dependence.
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