This course could be thought of as the science of decision making and behavior change. Over the last 30 years, psychologists and economists have gained a deeper understanding of what motivates people, how they process information, and what non-economic features of the choice environment influence decisions. Many of their insights challenge traditional assumptions about rationality and self-interest. This research program (sometimes called "behavioral economics" or "behavioral science") has provided insights into how people's decisions deviate from "optimal" choices as well as the...