Assorted links

1) Richard Thaler and George Osborne in the Guardian. U.K. pilot recycling programs to replace fines with rewards are showing results.

2) A new study finds calorie labeling for a hypothetical McDonald's meal reduces calorie consumption. One key difference from past studies: People aren't ordering meals for themselves. Parents are ordering meals for their children. Hat tip: Patti Hunter.

3) Crayola's law says that the number of Crayola colors doubles every 28 years. How much faster do children...