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Exam 17: Oligopoly

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Question 51

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Table 17-4 Only two firms, JKL and XYZ, sell a particular product. The following table shows the demand curve for their product. Each firm has the same constant marginal cost of $8 and zero fixed cost. ​ ​ $\begin{array} { | c | c | c | } \hline \begin{array} { c } \text { Price } \\\text { (Dollars per unit) }\end{array} & \begin{array} { c } \text { Quantity Demanded } \\\text { (Units) }\end{array} & \begin{array} { c } \text { Total Revenue } \\\text { (Dollars) }\end{array} \\\hline 28 & 0 & 0 \\\hline 26 & 5 & 130 \\\hline 24 & 10 & 240 \\\hline 22 & 15 & 330 \\\hline 20 & 20 & 400 \\\hline 18 & 25 & 450 \\\hline 16 & 30 & 480 \\\hline 14 & 35 & 490 \\\hline 12 & 40 & 480 \\\hline 10 & 45 & 450 \\\hline 8 & 50 & 400 \\\hline 6 & 55 & 330 \\\hline 4 & 60 & 240 \\\hline 2 & 65 & 130 \\\hline 0 & 70 & 0 \\\hline\end{array}$ ​ -Refer to Table 17-4. How much less do each of these firms earn in the Nash equilibrium than if they jointly maximize profits?

A) $40.00
B) $10.00
C) $140.00
D) $20.00

E) A) and B)
F) A) and C)

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Question 52

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Table 17-9 Hanna and Alicia are two college roommates who both prefer a clean common space in their dorm room, but neither enjoys cleaning. The roommates must each make a decision to either clean or not clean the dorm room's common space. The following table shows the payoffs for this situation, where the higher a player's payoff number, the better off that player is. ​ ​ -Refer to Table 17-9. What is Alicia's dominant strategy?

A) Alicia has no dominant strategy.
B) Alicia should always choose Clean.
C) Alicia should always choose Don't Clean.
D) Alicia has two dominant strategies, Clean and Don't Clean, depending on the choice Hanna makes.

E) A) and B)
F) A) and C)

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Question 53

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Briefly describe the practice of resale price maintenance.

If a certain market were a monopoly, then the monopolist would maximize its profit by producing 4,000 units of output. If, instead, that market were a duopoly, then which of the following outcomes would be most likely if the duopolists successfully collude?

Table 17-15 Suppose that two coal mining companies - Allied and Barclay - own adjacent land suitable for excavating coal mines. The profits that each firm earns depends on both the number of mines it excavates and the number of mines excavated by the other firm. The table below lists each firm's individual profits: Allied Excavate one mine Excavate two mines -Refer to Table 17-15. Does Barclay have a dominant strategy? If so, describe it.

Table 17-4 Only two firms, JKL and XYZ, sell a particular product. The following table shows the demand curve for their product. Each firm has the same constant marginal cost of $8 and zero fixed cost. ​ ​ $\begin{array} { | c | c | c | } \hline \begin{array} { c } \text { Price } \\\text { (Dollars per unit) }\end{array} & \begin{array} { c } \text { Quantity Demanded } \\\text { (Units) }\end{array} & \begin{array} { c } \text { Total Revenue } \\\text { (Dollars) }\end{array} \\\hline 28 & 0 & 0 \\\hline 26 & 5 & 130 \\\hline 24 & 10 & 240 \\\hline 22 & 15 & 330 \\\hline 20 & 20 & 400 \\\hline 18 & 25 & 450 \\\hline 16 & 30 & 480 \\\hline 14 & 35 & 490 \\\hline 12 & 40 & 480 \\\hline 10 & 45 & 450 \\\hline 8 & 50 & 400 \\\hline 6 & 55 & 330 \\\hline 4 & 60 & 240 \\\hline 2 & 65 & 130 \\\hline 0 & 70 & 0 \\\hline\end{array}$ ​ -Refer to Table 17-4. If this market were perfectly competitive instead of oligopolistic, what would the price be?

The Sherman Antitrust Act prohibits competing firms from even talking about fixing prices.

Nike and Reebok (athletic shoe companies) are considering whether to advertise during the Super Bowl. Devise a simple prisoners' dilemma game to demonstrate the strategic considerations that are relevant to this decision. Does the repeated game scenario differ from a single period game? Is it possible that a repeated game (without collusive agreements) could lead to an outcome that is better than a single-period game? Explain the circumstances in which this may be true.

Why are the actions of firms interdependent in an oligopoly market but not in a monopolistically competitive market?

The game that oligopolists play in trying to reach the oligopoly outcome is similar to the game that the two prisoners play in the prisoners' dilemma.

Figure 17-1 -Refer to Figure 17-1. Suppose this market is served by two firms who each face the marginal cost curve shown in the diagram. The marginal revenue curve that a monopolist would face in this market is also shown. If the firms are able to collude successfully,

A cooperative agreement among oligopolists is more likely to be maintained,

Table 17-1 Imagine a small town in which only two residents, Sydney and Matthew, own wells that produce safe drinking water. Each week Sydney and Matthew work together to decide how many gallons of water to pump. They bring the water to town and sell it at whatever price the market will bear. To keep things simple, suppose that Sydney and Matthew can pump as much water as they want without cost so that the marginal cost of water equals zero. The town's weekly demand schedule and total revenue schedule for water is shown in the following table: ​ ​ $\begin{array} { | c | c | c | } \hline \begin{array} { c } \text { Quantity } \\\text { (Gallons) }\end{array} & \begin{array} { c } \text { Price } \\\text { (Dollars per gallon) }\end{array} & \begin{array} { c } \text { Total Revenue and Total Profit } \\\text { (Dollars) }\end{array} \\\hline 0 & 48 & 0 \\\hline 90 & 44 & 3,960 \\\hline 180 & 40 & 7,200 \\\hline 270 & 36 & 9,720 \\\hline 360 & 32 & 11,520 \\\hline 450 & 28 & 12,600 \\\hline 540 & 24 & 12,960 \\\hline 630 & 20 & 12,600 \\\hline 720 & 16 & 11,520 \\\hline 810 & 12 & 9,720 \\\hline 900 & 8 & 7,200 \\\hline 990 & 4 & 3,960 \\\hline 1,080 & 0 & 0 \\\hline\end{array}$ ​ -Refer to Table 17-1. If this market for water were perfectly competitive instead of monopolistic, what price would be charged?

Table 17-5 The table shows the town of Driveaway's demand schedule for gasoline. Assume the town's gasoline seller(s) incurs a cost of $2 for each gallon sold, with no fixed cost. ​ ​ $\begin{array} { | c | c | c | } \hline \begin{array} { c } \text { Quantity } \\\text { (Gallons) }\end{array} & \begin{array} { c } \text { Price } \\\text { (Dollars per gallon) }\end{array} & \begin{array} { c } \text { Total Revenue } \\\text { (Dollars) }\end{array} \\\hline 0 & 8 & 0 \\\hline 50 & 7 & 350 \\\hline 100 & 6 & 600 \\\hline 150 & 5 & 750 \\\hline 200 & 4 & 800 \\\hline 250 & 3 & 750 \\\hline 300 & 2 & 600 \\\hline 350 & 1 & 350 \\\hline 400 & 0 & 0 \\\hline\end{array}$ -Refer to Table 17-5. If there are exactly two sellers of gasoline in Driveaway and if they collude, then which of the following outcomes is most likely?

What are the three examples of controversial business practices that antitrust laws often prohibit?

Scenario 17-1 ​ Assume that a local restaurant sells two items, salads and steaks. The restaurant's only two customers on a particular day are Mr. Carnivore and Ms. Leafygreens. Mr. Carnivore is willing to pay $20 for a steak and $7 for a salad. Ms. Leafygreens is willing to pay only $8 for a steak, but is willing to pay $12 for a salad. Assume that the restaurant can provide each of these items at zero marginal cost. -Refer to Scenario 17-1. If the restaurant is unable to use tying, what is the profit-maximizing price to charge for a salad?

How did the Clayton Act of 1914 differ from the Sherman Antitrust Act of 1890?

Table 17-8 This table shows the payoffs for a game played between two players, A and B. -Refer to Table 17-8. Which of the following statements regarding this game is true?

Assume that Bart's Batteries has entered into a resale price maintenance agreement with Radio Shanty but not with Prime Purchase. In this case,

Scenario 17-2 ​ Assume that a local telecommunications company sells high speed internet access and cable television. The company's only two customers are Taylor and Tim. Taylor is willing to pay $50 per month for high speed internet access and $50 per month for cable television. Tim is willing to pay only $20 per month for high speed internet access, but is willing to pay $70 per month for cable television. Assume that the telecommunications company can provide each of these products at zero marginal cost. -Refer to Scenario 17-2. If the telecommunications company is unable to use tying, what is the profit-maximizing price to charge for cable television?