An intro to economics course at Harvard is the class everyone wants to take -- its professor explains why

CNBC "Economics 10: Principles of Economics" is the most popular class at Harvard this fall with 627 undergraduate students enrolled. The class is taught by renowned economist Gregory Mankiw, who was chairman of the Council of Economic Advisers under President George W. Bush. "I'd love to say it's me, but I'm sure it's not just me," Mankiw told Business Insider when he taught the class last semester. "It's really about economics." The course, which has been the most popular for the past few seme...