Consumer behavior is the study of how individuals make decisions to spend their available resources (time, money, effort) on consumption-related items. It involves understanding the factors that influence buying decisions, including psychological, social, cultural and situational factors. Studying consumer behavior helps businesses understand customers, identify trends, develop effective marketing strategies and design products that satisfy consumer needs and wants. There are various methods for collecting consumer behavior data, such as surveys, focus groups, interviews, observations, experiments and analyzing existing customer data sources.