Abstract
The goal of this chapter is to describe how behavioural economics has been applied to health care sector, beginning with the origins of the Behavioural Insights Team in the United Kingdom, and concluding with the broad public health policy context in both the United Kingdom and across much of the developed world. We then give examples of areas of health policy where the lessons of behavioural economics may prove useful, followed by practical examples from randomized control trials of where these lessons have been applied. Finally, we discuss the use of randomized control trials in public policy from a practical perspective.