Simon & Schuster

Each new year brings with it resolutions and to-do lists. They are easy enough to make, but how do we stay motivated to actually do them? It is a topic behavioral economist Dan Ariely tackles in his new book, "Payoff: The Hidden Logic That Shapes Our Motivations" (Ted Books/2016). Ariely is the author of bestselling books about behavioral economics, a Duke professor, and the founder and director of the Center for Advanced Hindsight in Durham.