Imagine your local supermarket invites you to get a 10% reduction on all food bills at the end of the year if you buy 90% of all food there throughout the year. Would you accept? If your supermarket is dominant in the sense of European competition law—and if it is located at the, say, Belgian-Dutch border—it may face an antitrust investigation. The rebate may turn into an exclusivity arrangement that hinders free competition for your money; welcome to the world of target rebates. The book under review deals with the handling of target rebates in European competition law. Above all, however, it is a study of the possible information to be drawn from economics and behavioral studies for the law.