Organizational buying behavior is the decision-making process that organizations use to establish the need for products and services and identify, evaluate, and choose among alternative brands and suppliers. the process that organizations use to purchase the raw materials and tools used in the manufacturing of a product the actions consumers take in purchasing and using products and services, including the mental and social processes that come before and after the action. purchase behavior based upon derived demand determining what to purchase and the quantity to purchase based upon the derived supply