Health disparities and direct-to-consumer advertising of pharmaceutical products

Health information drives crucial consumer health decisions and plays a central role in healthcare markets. Consumers who are better-informed about smoking, diet, and physical activity make healthier choices outside the healthcare sector (Kenkel, 1991; Ippolito & Mathios, 1990, 1995; Meara, 2001). Better-informed consumers also interact differently with physicians and other healthcare providers (e.g., Cutler, Landrum, & Stewart, 2006). In addition to the immediate consequences for individual consumers, health economists have long recognized that information also has broader implications for principal–agent relationships and the functioning of healthcare markets.¹ More recent lines of research in health economics and medical sociology emphasize the potential role of consumer information in explaining health disparities associated with socioeconomic status (Deaton, 2002; Goldman & Lakdawalla, 2001; Glied & Lleras-Muney, 2003; Link & Phelan, 1995). Both health economists and medical sociologists stress that because of disparities in consumer information, rapid medical progress tends to be accompanied by increased disparities in medical treatment and health outcomes.