Buying behavior can vary based on location, individual, and type of product. Complex buying behavior occurs when multiple people are involved in the purchasing decision and more deliberation is required. Consumers exhibit complex buying when highly involved in an expensive, infrequent, or risky purchase where brands differ significantly. Variety-seeking behavior involves low involvement but differences between brands, so consumers try different options. The five stages of the buying decision process are need recognition, information search, evaluation of alternatives, purchase decision, and post-purchase evaluation, but some stages may be skipped for routine purchases.