Question 1: How will commercial airlines respond to the threat of new $27,500 fines for keeping passengers on the tarmac for more than 3 hours? What inefficiency will this create?

Question 2: I recently sold my used car. If no new production occurred for this transaction, how could it have created value?

Question 3: You were able to purchase two tickets to an upcoming concert for $100 apiece when the concert was first announced three months ago. Recently, you saw that StubHub was listing similar seats for $225 apiece. What does it cost you to attend the concert?

Question 4: Due to the housing bubble, many houses are now selling for much less than their selling price just two to three years ago. There is evidence that homeowners with virtually identical houses tend to ask for more if they paid more for the house. What fallacy are they making?

Question 5: Students doing poorly in courses often consider dropping the courses. Many universities will only offer a refund up to a certain date. Should this affect their drop decisions?