Russell Roberts interviews Greg Mankiw.

Roberts: Although I would alarm you by pointing out that in a lot of those high school classes they spend a lot of time playing a stock market game which encourages people to invest their money in short-term, high-risk ways.

Mankiw: There is a question of what they are teaching and it's not always what an economist wants them to be teaching. And I think what we definitely need to do as a profession is to provide more guidance for those high school teachers. I've talked to high school teachers and principals. There's a shortage of people in high schools who teach economics. One of the reasons is that since they haven't traditionally taught economics, if you were expecting to be a high school teacher, you wouldn't have thought to major in economics. That should change, but it will take years.