The Marginalist:

Yes. That is a supply and demand graph pumpkin.

Also, from Keith Hennessey:

My former White House colleague Tevi Troy suggested the following method for turning children into lifelong tax cutters.

1. Make each of your kids spread his or her Halloween candy out on the kitchen table.
2. Take one-third of it.
3. Say, “That’s called TAXES.”
4. Repeat each Halloween.

I figure it will take maybe two years of this to turn them into lifelong tax cutters.