Raj Raghunathan is a Professor of Marketing at the McCombs School of Business at the University of Texas. He has also become an expert in the field of happiness. He is the author of the book If You're So Smart, Why Aren't You Happy. He teaches an MBA course on happiness as well as a class on the online learning platform Coursera entitled: A Life of Happiness and Fulfillment. Over 170,000 students have taken the course and it's consistently ranked as one of the top ten courses (amongst thousands of others).