ECON 10.2

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DVDs can be produced at a constant marginal cost, and Roaring Lion Studios is releasing the DVDs for its last two major films. The DVD for Rambeau 17 is priced at $20 per disk, and the DVD for Schreck 10 is priced at $30 per disk. If the Lerner indices for Rambeau 17 divided by the Lerner index for Schreck 10 equals 0.5, what is the constant marginal cost of producing both DVDs? A) MC = $10 B) MC = $15 C) MC = $20 D) MC = $5

B

Suppose that the competitive market for rice in Japan was suddenly monopolized. The effect of such a change would be: A) to decrease the price of rice to the Japanese people. B) to decrease the consumer surplus of Japanese rice consumers. C) to decrease the producer surplus of Japanese rice producers. D) a welfare gain for the Japanese people. E) increase the consumption of rice by the Japanese people

B

The Lerner index measures A) a firm's potential monopoly power. B) the amount of monopoly power a firm chooses to exercises when maximizing profits. C) a firm's potential profitability. D) an industry's potential market power.

B

The more elastic the demand facing a firm, A) the higher the value of the Lerner index. B) the lower the value of the Lerner index. C) the less monopoly power it has. D) the higher its profit.

B

What is the value of the Lerner index under perfect competition? A) 1 B) 0 C) infinity D) two times the price

B

DVDs can be produced at a constant marginal cost of $10 per disk, and Roaring Lion Studios is releasing the DVDs for its last two major films. The DVD for Rambeau 17 is priced at $20 per disk, and the DVD for Schreck 10 is priced at $30 per disk. What are the Lerner indices for these two movies? A) Both equal one. B) 2 and 3, respectively C) 0.5 and 0.67, respectively D) 1 and 2, respectively

C

DVDs can be produced at a constant marginal cost of $5 per disk, and Roaring Lion Studios is releasing the DVDs for its last two major films. The DVD for Rambeau 17 is priced at $20 per disk, and the DVD for Schreck 10 is priced at $30 per disk. What are the price elasticities of demand for these two movies? A) Both equal -1.2. B) -0.75 and -5/6, respectively C) -1.33 and -1.2, respectively D) -1.33 and -2, respectively

C

Roaring Lion Studios can produce DVDs at a constant marginal cost of $5 per disk, and the studio has just releasing the DVD for its latest hit film, Ernest Goes to the Hamptons. The retail price of the DVD is $25, and the elasticity of demand for this film is -2. Has the studio selected the profit-maximizing retail price for this DVD? A) Yes B) No, the retail price is too low C) No, the retail price is too high D) We do not have enough information to answer this question.

C

You work as a marketing analyst for a pharmaceutical firm, and you are trying to gather information about the marginal cost of production for a competing firm. You know that they have a patent on a popular medication that sells for $20 per dose, and you believe the elasticity of demand for this product is roughly -4. Assuming the competing firm acts as a profit-maximizing monopolist, what is the competing firm's approximate marginal cost of production? A) $10 per dose B) $12.50 per dose C) $15 per dose D) $20 per dose

C

Monopoly power results from the ability to A) set price equal to marginal cost. B) equate marginal cost to marginal revenue. C) set price above average variable cost. D) set price above marginal cost.

D

Use the following two statements to answer this question: I. A firm can exert monopoly power if and only if it is the sole producer of a good. II. The degree of monopoly power a firm possesses can be measured using the Lerner Index: L = (P - AC)/AC. A) Both I and II are true. B) I is true, and II is false. C) I is false, and II is true. D) Both I and II are false.

D

What is the maximum value of the Lerner index? A) Infinity B) 100 C) Two D) One

D

Assume that a firm's marginal cost is $10 and the elasticity of demand is -2. We can conclude that the firm's profit maximizing price is approximately A) $20. B) $5. C) $10. D) The answer cannot be determined without additional information.

A

The ________ elastic a firm's demand curve, the greater its ________. A) less; monopoly power B) less; output C) more; monopoly power D) more; costs

A


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