This book focuses on a new type of inclusive consumer decision-making process model (CDM) related to new leading-edge consumers. There have been two main types of CDMs for consumer behavior: one is the stimulus–response model and the other is the information-processing model. The stimulus–response model is applicable when consumers buy low-involvement products, and the information-processing model applies for high-involvement products. Thus consumers’ decision making depends on the involvement level for the products. <p>With the advent of the widespread use of the Internet, however, the situation has changed. Consumers whose information sensitivity is high (i.e., among leading-edge consumers) now use the Internet to search for information even for low-involvement products. The consumers’ decision-making process depends therefore on their information sensitivity, not on the involvement level of the products. Also, these leading-edge consumers become in effect another type of media as they broaden their experience through the Internet.</p><p></p> <p>Under these circumstances, research about leading-edge consumers and the introduction of a new CDM is highly significant. This book gathers data about leading-edge consumers, analyzes these data, then proposes a new type of CDM called “circulation marketing”. Following this model, not only the previous types of CDM, but also the new kind of CDM, including share behavior of leading-edge consumers, is explained.</p>