The Economic Way of Thinking 13th Edition by David Prychitko, Peter Boettke, Paul Heyne

Exercise 14

Here is a multiple-choice question for you to think about. The buildings and grounds at Ivy College are far more littered than the buildings and grounds at the Ivyville Shopping Mall because (1) students are slobs by nature; (2) more people use the Ivy College campus than use the shopping mall; (3) customers at the shopping mall have less opportunity to litter because they don't smoke or purchase take-out food; (4) customers at the mall have less incentive to litter because they are proud to be "Ivyville Mallers" and so take good care of their "campus"; (5) there are people at the mall, but not on the Ivy College campus who expect to receive substantial financial benefits from keeping the buildings and grounds litter-free.