LITERATURE REVIEW 2.8 Study of Consumer Behaviour: Building Marketing Strategy Consumer behavior is at the core of successful marketing strategy, and understanding it requires a blend of psychology, sociology, anthropology, and economics. This comprehensive work delves into how individuals make consumption decisions and how these decisions are influenced by a web of internal and external factors. The authors emphasize that consumer behavior is not only the study of what people buy, but also why, when, where, and how they buy it—and how they eventually dispose of the product. The book starts by asserting the importance of consumer behavior for marketers, policymakers, and consumers themselves. In today’s dynamic environment where globalization, technological advancement, cultural shifts, and regulatory changes occur rapidly, businesses must grasp the complexity of consumer behavior to remain relevant and competitive. By aligning marketing strategies with evolving consumer preferences, organizations can deliver superior value, enhance customer satisfaction, and build brand loyalty . The book introduces a conceptual model that integrates external and internal influences, the decision-making process, and outcomes at individual, firm, and societal levels. External influences such as culture, subculture, demographics, social class, reference groups, family, and marketing activities shape consumer perceptions and preferences. Internal influences, including motivation, personality, emotion, perception, learning, memory, and attitudes, drive individual behavior and response to stimuli. These factors interact dynamically as consumers progress through a decision process that includes problem recognition, information search, evaluation of alternatives, purchase, and postpurchase behavior . The decision process is further affected by the situation in which it occurs, such as physical surroundings, social setting, time, task, and the consumer’s momentary condition. These situational variables often tip the scale in favor of or against a product, brand, or outlet .