New restaurants often do not manage to succeed within a reasonable amount of time. Exotic restaurants especially face the problem that price promotions may not attract new customers because prospective customers might associate very low prices for unfamiliar food with a high functional risk....

Research in marketing examines concepts that deal with social interaction, for example opinion leadership and word-of-mouth. Two types of actors play key roles in social networks where social interaction takes place: actors who have a lot of contacts (so called hubs) and actors in bridging...