AP Photo

The other day, Levitt and I participated in a brainstorming session on how to fight childhood obesity, sponsored by the Robert Wood Johnson Foundation. (FWIW, we recorded the event and will try to turn it into a podcast.)

One topic that got a lot of traction was a targeted tax on sugary drinks and fatty foods. (This is often called a “fat tax” but should not be confused with a tax on overweight people.)