The marketing research industry has experienced unparalleled growth in recent years. According to an Advertising Age study, revenues of U.S. research companies have grown substantially in recent years. The growth in revenues of international research firms has been even more dramatic. Marketing research firms have attributed these revenue increases to post-sale customer satisfaction studies (one-third of research company revenues), retail-driven product scanning systems (also one-third of all revenues), database development for long-term brand management, and international research studies.