Reference no: EM131019011
Practice Questions #5
1. A perfectly competitive market is ____ efficient than a single price monopoly, and a second-degree price discriminating monopoly is _____ efficient than a monopoly that perfectly price discriminates.
| Player 2 |
| Player 1 |
|
L |
C |
R |
| U |
-4, 6 |
x, 2 |
1, 8 |
| M |
0, 0 |
5, 1 |
4, y |
| D |
10, -4 |
5, -5 |
8, 14 |
2. In the game shown above, what must the variable x and y satisfy in order for (M,C) to be an equilibrium?
3. Two firms, Mary's BakeShop and Cleo's Confections, bake identical pies. Suppose these firms engage in price competition. Mary's marginal cost of baking a pie is $6 and Cleo's marginal cost of baking a pie is $7. In the equilibrium of this price competition game, who will control the market? What will be the market equilibrium price? Prices must be in cent multiples.
4. Assume that Mary (respectively Cleo) would set a price at $8 (respectively $10) if it were a monopolist in this market. Using this information find which firm(s) will control the market and the market equilibrium price.
(a) Mary and Cleo will split the market and the price will be $10.
(b) Mary and Cleo will split the market and the price will be $8.
(c) Mary will control the market and the price will be $8.
(d) Mary will control the market and the price will be $6.99.
(e) Cleo will control the market and the price will be $7.99.
5. For this question suppose that Mary (resp. Cleo) would set a price at $6.5 (resp. $8) if it were a monopolist in this market, with all else as in the previous question. In the Equilibrium of this price competition game, who will control the market? What will be the market equilibrium price?
(a) Mary and Cleo will split the market and the price will be $8.
(b) Mary and Cleo will split the market and the price will be $6.5.
(c) Mary will control the market and the price will be $6.5.
(d) Mary will control the market and the price will be $6.99.
(e) Cleo will control the market and the price will be $7.99.
| Player 2 |
Player 1
|
|
L |
R |
| U |
20,30 |
100,20 |
| D |
10,100 |
99,99 |
6. The equilibria of the game above are
(a) (U,L) and (D,R).
(b) (D,R) only.
(c) (U,L) only.
(d) (D,L) only.
7. In the same game matrix, which of the following are true?
(a) Player 1 has a dominant strategy.
(b) Player 2 has a dominant strategy.
(c) Player 1's best response to L is U.
(d) All of the above.
8. Use the figure below to answer this question. According to this payoff matrix, which values of x, y would make B and L dominant strategies for Emily and Bill?
|
Emily |
Bill |
|
|
L
|
R
|
|
T
|
(9, x)
|
(2, 3)
|
|
B
|
(10, 8)
|
(y, 7)
|
(a) x =2, y = 1
(b) x=2, y = 3
(c) x=4, y = 3
(d) x=1, y = 1
(e) none of the above
9. Suppose a perfectly competitive firm faces a marginal product of labor (MPL) curve equal to MPL=12-2L. The price of the firm's output is $5. The labor market is also perfectly competitive, and is characterized by the following two equations: L=60-W (demand) and L=4W+10 (supply). How many units of labor will this firm choose to hire if the firm maximizes profits? How many firms will there be in the output market?
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