2013年AP微观经济学（选择题+简答题）真题及答案下载（PDF）

2013年AP微观经济学（选择题+简答题）真题及答案下载（PDF）

2013年AP微观经济学选择题如下：

1. After graduating from high school, Maria chose to go to college, while Omar chose to work fulltime. Which of the following best describes the opportunity costs for these decisions?

(A) Maria’s opportunity cost includes the salary she could have earned if she had gone to work.

(B) Maria’s opportunity cost is her living expenses while attending college.

(C) Omar’s opportunity cost is the salary he will earn from working.

(D) Omar’s opportunity cost is the tuition and expenses he would have paid for college.

(E) Omar’s opportunity cost is definitely greater than Maria’s.

2. The basic economic problem of all economies is essentially one of deciding how to make the best use of

(A) unlimited resources to satisfy unlimited wants

(B) limited resources to satisfy unlimited wants

(C) unlimited resources to satisfy limited wants

(D) limited resources to satisfy limited wants

(E) limited resources to provide public goods

3. The diagram above shows the demand curve for a good. If the price increases from P₁ to P₂ , and quantity consumed decreases from Q₂ to Q₁ , consumer surplus decreases by the area

(A) BDC

(B) P₁P₂BC

(C) P₁P₁BD

(D) Q₁DCQ₂

(E) P₂P₃B

4. If the government imposes a tariff on imports of cheese, the price and quantity of imported cheese will most likely change in which of the following ways?

      Price          Quantity

(A) Decrease    Decrease

(B) Decrease    Increase

(C) Increase     Not change

(D) Increase     Decrease

(E) Increase     Increase

5. According to the law of demand, an increase in the price of grape juice will result in

(A) a rightward shift in the demand curve for grape juice

(B) a leftward shift in the demand curve for grape juice

(C) a decrease in the demand for orange juice, a substitute

(D) a decrease in the quantity of grape juice demanded

(E) an increase in the quantity of grape juice supplied

6. The table above shows the demand schedules for Jill and for all other consumers, as well as the market supply schedule for the same good. The equilibrium price in this market is

(A) $8

(B) $7

(C) $6

(D) $5

(E) $4

。。。。2013年AP微观经济学选择题余下省略！

2013年AP微观经济学简答题如下：

1. Rice is produced in a perfectly competitive industry. Grand Farm is a typical firm in the rice industry earning a positive economic profit.

(a) Using correctly labeled side-by-side graphs for the rice industry and Grand Farm, show each of the following in the short run.

(i) The industry price and quantity, labeled P_M and Q_M

(ii) Grand Farm’s demand curve and marginal revenue curve, labeled D_F and MR_F

(iii) Grand Farm’s quantity of output, labeled Q_F

(iv) Grand Farm’s profit, shaded completely

(b) In the long run, what happens to each of the following?

(i) The number of firms in the industry. Explain.

(ii) The equilibrium price; does it increase, decrease, or remain the same relative to P_M?

(c) Suppose Lori’s Quick Eats sells fried rice in a monopolistically competitive fast-food industry.Lori’s Quick Eats is earning positive economic profits in the short run. Using a correctly labeled graph for this monopolistically competitive firm, show each of the following in the short run.

(i) The demand and marginal revenue curves, labeled D_L and MR_L

(ii) The marginal cost and average total cost curves, labeled MC and ATC

(iii) The profit-maximizing price and quantity, labeled P_L and Q_L

(d) Draw a correctly labeled graph for Lori’s Quick Eats in long-run equilibrium showing the demand curve and the long-run average total cost curve.

2. Attaburger and Beefsteak are the only two fast-food hamburger restaurants in a small town. Each firm can choose to set a high price or a low price for a hamburger meal. The payoff matrix below shows the daily profits for any combination of strategies the two restaurants can choose. The payoff for Attaburger is listed first; the payoff for Beefsteak is listed second. Assume both restaurants have complete information. 

(a) If Attaburger selects a high price, what strategy will Beefsteak select? Explain using the dollar values in the payoff matrix.

(b) Does Beefsteak have a dominant strategy? Explain using the dollar values in the payoff matrix.

(c) Assume that Attaburger and Beefsteak collude, both agreeing to choose high prices in order to maximize their joint profit at $23. If such an agreement is not legally enforceable, does Attaburger have an incentive to break the agreement? Explain using specific values.

(d) Instead of colluding, the firms simultaneously select their prices. In the Nash equilibrium, what are the daily profits for each of the following?

(i) Attaburger

(ii) Beefsteak

。。。。2013年AP微观经济学简答题余下省略！

2013年AP微观经济学（选择题+简答题）真题及答案下载（PDF），完整版20元有偿下载！