Consumer behaviour is the study of how individuals, groups, and organizations select, buy, use and dispose of goods and services to satisfy their needs and wants. It is based on the study of psychology, sociology, anthropology, marketing and economics. Buyer characteristics depend on cultural, social, personal and psychological factors. These include cultural influences like subculture and social class, social influences like reference groups and opinion leaders, and psychological influences like motivation, perception, learning, beliefs and attitudes. Studying consumer behaviour is important because many new products fail due to not understanding these consumer characteristics and behaviours. Marketing cannot be standardized globally due to cross-cultural differences in styles, habits, tastes and preferences.