Why do the keypads on drive-up cash machines have Braille dots? Why are round-trip fares from Orlando to Kansas City higher than those from Kansas City to Orlando? For decades, Robert Frank has been asking his economics students to pose and answer questions like these as a way...
Have you ever wondered why there is a light in your fridge but not in your freezer? Or why 24-hour shops bother having locks on their doors? Or why soft drink cans are cylindrical, but milk cartons are square? The answer is simple: economics.