Hubbard and O'Brien (2nd ed.): ch. 3, p. 95, ques. 4.6
  According to an article in the Wall Street Journal:
  As occupancy rates at luxury hotels have grown 13% over the last five years, prices have risen by 19%, according to Smith Travel Research. (That comes despite an 18.5% increase in the number of rooms over the same period.)  
Use a demand-and-supply graph to explain how these three things could be true: an increase in the equilibrium quantity of hotel rooms occupied, an increase in the equilibrium price of hotel rooms, and an increase in the number of hotel rooms available. 		 
Hubbard and O'Brien (2nd ed.): ch. 11, p. 409, ques. 6.6
  [Related to Solved Problem 11-6 on page 399.]
In early 2007, Pioneer and JVC, two Japanese electronics firms, each announced that their profits were going to be lower than expected because they were both forced to cut prices for LCD and plasma television sets. Given the strong consumer demand for plasma television setsm shouldn't firms have been able to raise prices and increase their profits? Briefly explain.
(Source: Hiroyuki Kachi, "Pioneer's Net Rises 74%, JVC Posts Loss," Wall Street Journal, February 1, 2007.) 		 
Hubbard and O'Brien (2nd ed.): ch. 12, p. 435, ques. 3.5
  [Related to Solved Problem 12-3 on page 420.]
Writing in the Wall Street Journal, Walter Mossberg argues:
  But the new popularity of the [Macintosh computer] is also partly due to the fact that it can now run Windows along with Apple's superior Mac OS X operating system. That means that if there's a program you need that comes only in a Windows version, you can run it on any current Mac model, speedily and with all its features.  
If it is an advantage to Apple that the Macintosh can now run Windows as well as the Mac operating system would Apple be even better off if it abandoned its own operating system and installed only Windows an the computers it sells? 		 
Hubbard and O'Brien (2nd ed.): ch. 12, p. 436, ques. 3.9
  [Related to the Making the Connection on page 422.]
L'Oreal devotes significant resources to developing new products and differentiating its products from those of its competitors. Suppose it did not do that. What would the effect on its profits in the short run? What would the effect on its profits in the long run? 		 
Hubbard and O'Brien (2nd ed.): ch. 14, p. 499, ques. 2.10
  [Related to the Making the Connection on page 477.]
Why was De Beers worried that people might resell their old diamonds? How did De Beers attempt to convince consumers that used diamonds were not good substitutes for new diamonds? How did De Beers strategy affect the demand curve for new diamonds? How were De Beers' profits affected? 		 
Hubbard and O'Brien (2nd ed.): ch. 15, p. 529, ques. 2.6
  An article on the AMC movie theater chain contained the following:
  In July, [AMC} announced plans to offer steeply discounted movie tickets to shows on Friday, Saturday and Sunday mornings. "Seventy-five percent of the revenue comes from the weekend," Mr. Brown [AMC's CEO] said. His recent intiatives are attempts to address the question: "Is there a way with price that you can create opportunity, a new market?  
Why would it be profitable for AMC to sell "steeply discounted" movie tickets for movies being shown on weekend mornings? Wouldn't the firm's revenues be higher if it charged the regular---higher---price for those showings? Briefly explain. 		 
Hubbard and O'Brien (2nd ed.): ch. 13, p. 466, ques. 2.9
  Baseball players who hit the most home runs relative to other players usually receive the highest pay. Beginning in the mid-1990s, the typical baseball player became significantly stronger and more muscular. As one baseball announcer put it, "The players of 20 years ago look like stick figures compared with the players of today." As a result, the average number of home runs hit each year increased dramatically. Somem of the increased strength that baseball players gained came from more weight training and better conditioning and diet. As some players admitted, though, some of the increased strength came from taking steriods and other illegal drugs. Taking steriods can significantly increase the risk of developing cancer and other medical problems.
a. In these circumstances, are baseball players in a prisoners' dilemma? Carefull explain.
b. Suppose that Major League Baseball begins testing players for steriods and firing players who are caught using them (or other illegal muscle-building drugs). Will this testing make baseball players as a group better off or worse off? Briefly explain.