This article examines seafood consumption in France by analyzing household demand for five seafood categories: fresh salmon, frozen Salmonidae, fresh cod, frozen whitefish, and all other seafood. To this end, an infrequency of purchase model is applied to an almost ideal demand system. First, a negative binomial count data model with theory-consistent homogeneity and symmetry restrictions is used to estimate purchase frequency. Second, an almost ideal demand system adjusted for the probability of purchase and the relationship between purchase frequencies and quantities is used. While the price elasticities from the first estimation stage may be used to design a price strategy aimed at increasing store traffic, those from the second one could inform a more traditional approach to stimulating demand. The results reveal heterogeneous consumer preferences for different seafood types and indicate that purchase frequency alone can provide enough information to identify various consumer segments in the seafood market.

中文翻译：

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喜欢吃鱼？法国海鲜消费统计数据分析

本文通过分析五种海鲜类别的家庭需求来研究法国的海鲜消费：新鲜鲑鱼、冷冻鲑鱼科、新鲜鳕鱼、冷冻白鱼和所有其他海鲜。为此，将不频繁购买模型应用于几乎理想的需求系统。首先，使用具有理论一致同质性和对称性限制的负二项式计数数据模型来估计购买频率。其次，使用根据购买概率以及购买频率与数量之间的关系进行调整的几乎理想的需求系统。虽然第一个估算阶段的价格弹性可用于设计旨在增加商店客流量的价格策略，但第二个估算阶段的价格弹性可以为刺激需求的更传统方法提供信息。