Freakonomics Quiz: What Is the Most Addictive Thing on Earth?
When he told me his opinion as to the most addictive good, I was initially surprised and skeptical. On further reflection, I believe he is right.
So here is the quiz: what does Gary Becker think is the most addictive thing on earth?
Freakonomics schwag to the first person to post the right answer in the comments.
Addendum: The answer and the winners are announced here.