Thank you, Jason, for your kind introduction. I appreciate the opportunity to return to Harvard and teach the Ec10 class today. When I taught at Harvard, only the most gifted instructors and teaching fellows were allowed to teach and appear before students in this course. It seems today that standards may have slipped, but I am nevertheless honored to be here. I will start by saying what I said at the beginning of every course I taught here and in my entire career as an academic economist. "It is a great time to be an economist!" Economics provides powerful tools for understanding the forces that affect your ... (full story)