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Exam 7: Consumers, Producers, and the Efficiency of Markets

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Question 31

Multiple Choice

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Motor oil and gasoline are complements. If the price of motor oil increases, consumer surplus in the gasoline market

A) decreases.
B) is unchanged.
C) increases.
D) may increase, decrease, or remain unchanged.

E) A) and B)
F) A) and D)

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Question 32

Multiple Choice

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Table 7-5 For each of three potential buyers of oranges, the table displays the willingness to pay for the first three oranges of the day. Assume Allison, Bob, and Charisse are the only three buyers of oranges, and only three oranges can be supplied per day. -Refer to Table 7-5. Who experiences the largest gain in consumer surplus when the price of an orange decreases from $1.05 to $0.75?

A) Allison
B) Bob
C) Charisse
D) Allison and Bob experience the same gain in consumer surplus, and Charisse's gain is zero.

E) A) and D)
F) All of the above

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Question 33

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Market power and externalities are examples of market failures.

Figure 7-13 -Refer to Figure 7-13. If the equilibrium price is $60, what is the producer surplus?

Figure 7-10 -Refer to Figure 7-10. Which area represents the increase in producer surplus when the price rises from P1 to P2?

Table 7-15 -Refer to Table 7-15. You and your best friend want to hire a professional photographer to take pictures of your two families. The table shows the costs of the four potential sellers in the local photography market. You and your friend agree to offer $500 for each session. Who accepts the offer, and what is the total producer surplus in the market?

Producer surplus is the area

Michael values a stainless steel refrigerator for his new house at $3,500, but he succeeds in buying one for $3,000. Michael's consumer surplus is

Ronnie operates a lawn-care service. On each day, the cost of mowing the first lawn is $15, the cost of mowing the second lawn is $25, and the cost of mowing the third lawn is $40. His producer surplus on the first three lawns of the day is $100. If Ronnie charges all customers the same price for lawn mowing, that price is

If Darby values a soccer ball at $50, and she pays $40 for it, her consumer surplus is $10.

Which of the following will cause an increase in consumer surplus?

Welfare economics explains which of the following in the market for televisions?

Table 7-5 For each of three potential buyers of oranges, the table displays the willingness to pay for the first three oranges of the day. Assume Allison, Bob, and Charisse are the only three buyers of oranges, and only three oranges can be supplied per day. -Refer to Table 7-5. If the market price of an orange is $0.40, then

Suppose that Firms A and B each produce high-resolution computer monitors, but Firm A can do so at a lower cost. Cassie and David each want to purchase a high-resolution computer monitor, but David is willing to pay more than Cassie. Which of the following market outcomes is efficient?

Figure 7-32 -Refer to Figure 7-32. If the government imposed a price ceiling at $20 in this market, how much are consumer surplus, producer surplus, and total surplus?

Another way to think of the marginal seller is the seller who

If the government allowed a free market in organs for transplant there would be

Economists generally believe that, although there may be advantages to society from ticket-scalping, the costs to society of this activity outweigh the benefits.

Figure 7-21 -Refer to Figure 7-21. Which area represents total surplus in the market when the price is P1?

Wendy is willing to pay $50 for a concert ticket and Bruce would like to receive $25. If the market price is $40 for this transaction, then the total surplus would be $15.