• Dominant emphasis on decision processes and attitudes shaping buying, integrating behavioral decision making with economic behavior and psychological insights across contexts [1], [4], [7], [15].

• Marketing research becomes a methodological engine for measuring, modeling, and predicting consumer behavior, leveraging interactive/marketing research methods and analytics [9], [16], [17], [18].

• Loyalty and brand variation emerge as context-sensitive constructs, with measurement challenges guiding how retention is interpreted across products and markets [3], [16].

• Consumers are studied within broader social contexts of culture and consumption systems, treating consumerism and culture as determinants of behavior [4], [6], [7], [11], [13].

• Lifecycle allocation and time horizons shape purchasing and resource use, highlighting the role of lifetime processes in consumer decision making [6], [15], [20].