Abstract
The article systematises theoretical approaches to consumer basket choice under dynamic pricing. It substantiates the need to reconsider the traditional view of the consumer basket as a relatively stable consumption structure. The purpose of the study is to generalise theoretical approaches to consumer basket choice in a dynamic pricing environment, distinguish the main analytical interpretations of the consumer basket, and develop an original structural model of consumer basket choice in a digital pricing environment. The methodological framework combines theoretical generalisation, comparative analysis, structural-logical analysis, institutional analysis, and conceptual modelling. The study distinguishes among the normative, statistical, and microeconomic interpretations of the consumer basket and demonstrates that they differ in function, construction logic, and sensitivity to price changes. It is argued that dynamic pricing transforms not only the level of household expenditure but also the mechanism of basket formation. High-frequency price changes, cross-platform price dispersion, price personalisation, reference price effects, search costs, trust, and perceived price fairness generate a new logic of consumer choice in which households continuously adapt their purchasing structure to a volatile digital environment. The article develops an original structural model of the consumer basket choice system under dynamic pricing. The model combines external market conditions, the digital pricing environment, behavioural mechanisms of price perception, and resulting changes in actual consumption behaviour. Its distinctive feature is the inclusion of signalling feedback loops between aggregated user behaviour and platform pricing logic, as well as the distinction among three regimes of actual basket formation: stable, dynamically adaptive, and personalised-asymmetric. The framework also outlines directions for the operationalisation of model variables and for subsequent empirical testing.
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