The statistical relationship between product life cycle and repeat purchase behavior in convenience stores

摘要

The density function of product life cycles in convenience stores is found tofollow the Weibull distribution. To clarify the parameters that determine theselife cycles, we introduce the conditional market share-defined as theprobability that a product is selected by customers only if it had beenpreviously purchased-and the market share without any conditions. The productlife cycle is more strongly correlated with the conditional market share of theproduct than with the latter type of market share.