Agents and brokers play a key role in selling most insurance policies today. Agents have the authority to bind insurers to policies, while brokers recommend products but do not have binding authority. Insurance marketing systems refer to the methods used to sell and market products, such as personal selling, financial institution distribution, direct response, and other systems like worksite and stock broker marketing. Major life insurance distribution systems include personal selling, financial institution, direct response, and other systems. Property and casualty insurers also use systems like independent agencies, exclusive agencies, direct writers, and multiple distributions. Group marketing is also used to sell individual policies to group members.