Dr. Matt Killingsworth is a senior fellow at the Wharton School. He investigates the nature and causes of human happiness, including happiness at work, the relationship between money and happiness, how social relationships affect happiness, and many other topics. He is the creator of www.trackyourhappiness.org, a global research project that uses smartphones to study happiness in real-time during everyday life. His research has been tackled by the New York Times, Good Morning America, National Public Radio, Time Magazine, the BBC, and other media outlets. Killingsworth holds a PhD in Psychology from Harvard University and degrees in Engineering and Economics from Duke University.