This report delves into the intricate realm of consumer buyer behavior, a critical aspect of marketing management. It begins by defining consumer buyer behavior as the actions of final consumers purchasing goods and services for personal use, constituting the consumer market. The report then introduces the stimulus-response model and highlights the influence of cultural, social, personal, and psychological characteristics on consumer purchases. Cultural factors, including culture and subcultures (Hispanic, African American, and Asian American consumers), are examined, along with the concept of a total market strategy. Social factors such as groups, social networks, family, roles, and status are discussed, emphasizing word-of-mouth influence and opinion leaders. Personal factors, including occupation, age, life stage, economic situation, lifestyle, and personality, are analyzed, followed by an exploration of psychological factors such as motivation, perception, learning, and beliefs and attitudes. The report references Maslow's hierarchy of needs to explain consumer motivations. The Harley-Davidson example illustrates how multifaceted factors shape consumer behavior, underscoring the complexity and significance of understanding consumer decision-making processes.