Christian Bosch examines this special form of direct sales based on two quantitative empirical studies, focusing on both consumer behavior and the attrition behavior of sales partners. In the first study, he demonstrates that the design of sales events is essential for success. Close social relationships between the actors and participants lead to a more positive consumer behavior from the company's perspective. In the second study, it is shown for the first time that in multi-level marketing, the established influencing factors in the relevant literature, such as compensation and recognition for performance, reduce the intention of sales partners to leave. The social benefit of an activity also decreases the intention to leave the company.