Super freakonomic chapter 4 As Levitt and Dubner point out, when faced with the prospect of having to pay a fee for each can or bag of trash that is disposed of, many people have resorted to the Seattle Stomp, i. e., stomping on their trash so as to compact it and fit it into fewer containers. Recognizing that trash is compacted when it is dumped into a landfill, and the objective of per unit fees for trash disposal is to reduce the amount of trash going into a landfill and, in so doing, prolong the useful life of the landfill, how should waste disposal be priced?