Dr. Michael Mandel is the former chief economist at Business Week, where he helped direct the magazine's coverage of the domestic and global economies. His particular areas of expertise include: how innovation drives growth, and the inability of official economic statistics to properly measure today's economy. Dr. Mandel wrote more than 50 of the magazine's cover stories, including "Innovation, Interrupted" in June 2009, and "The GDP Mirage" in October 2009. He was named one of the top 100 business journalists of the 20th century, and has received multiple awards for his work. Mandel has a PhD in economics from Harvard. He is the author of four books, including a new introductory economics textbook, Economics: The Basics, now being used in college courses across the country. After leaving Business Week in December 2009, Mandel founded Visible Economy LLC, a new venture which combines business and economic journalism with education, using short videos (Our goals: "Credibility, Consistency, Clarity"). His new blog, "Mandel on Innovation and Growth," can be found at www.southmountaineconomics.com. Starting in the fall of 2010, Mandel will be a Senior Fellow at Wharton's Mack Center for Technological Innovation, looking at patterns of domestic and global innovation.