1) Consumer buyer behavior refers to how individuals and households purchase goods and services for personal use. Cultural, social, personal, and psychological factors influence consumer buying decisions. 2) The consumer buying process involves need recognition, information search, evaluation of alternatives, purchase decision, and post-purchase behavior. Marketers seek to understand how and why consumers make decisions at each stage. 3) Cultural factors like culture, subculture, and social class shape consumer values and preferences. Personal factors such as age, life stage, occupation, economic situation, lifestyle, personality, and self-concept also impact buying decisions.