Consumer behavior is influenced by cultural, social, and personal factors. Cultural factors include culture, subculture, and social class. Social factors refer to reference groups like family, roles, and status that impact product selection. Personal factors are age, life stage, occupation, personality, lifestyle, and values. For example, families with young children buy different products than empty nesters. Occupation also influences what people buy based on their job. Personality, lifestyle preferences for convenience, and views on spending impact individual consumer choices.