ECON 1000 Study Guide - Midterm Guide: E-Reader, Deadweight Loss, Demand Curve
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PLEASE ANSWER EACH QUESTION WITH A, B, C, and D. NOT ANSWERING ALL QUESTIONS OR INCORRECT ANSWERS WILL RESULT IN A THUMBS DOWN.
Question 1: Which of the following is not needed for price discrimination to be possible?
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A. The firm must have market power. |
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B. The firm must be able to prevent resale and arbitrage. |
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C. The firm must eventually learn about its customers' demands. |
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D. The firm's customers must have different demand curves. |
Question 2: Relative to standard monopoly pricing, first-degree price discrimination results in:
| A. |
higher consumer surplus, higher producer surplus, and higher total surplus. |
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| B. |
lower consumer surplus, higher producer surplus, and higher total surplus. |
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| C. |
lower consumer surplus, higher producer surplus, and lower total surplus. |
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| D. |
lower consumer surplus, lower producer surplus, and lower total surplus. |
Question 3: Relative to perfect competition, first-degree price discrimination results in:
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A. higher consumer surplus, higher producer surplus, and higher total surplus. |
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B. lower consumer surplus, higher producer surplus, and equal total surplus. |
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C. lower consumer surplus, higher producer surplus, and equal total surplus. |
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D. lower consumer surplus, lower producer surplus, and lower total surplus. |
Question 4: If market demand is P = 100 - Q and the firm has a constant marginal cost of 20, then with first-degree price discrimination, the firm's producer surplus will be:
| A. |
$800. |
| B. |
$1,600. |
| C. |
$2,400. |
| D. |
$3,200. |
Question 5: For third-degree discrimination to be possible, which of the following features is not required?
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A. market power |
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B. prevention of resale |
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C. identification of each customer's demand before purchase |
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D. customers with different demand curves |
Question 6: A golf course has frequent players whose demand is Qf = 260 - 0.4P and infrequent players whose demand is Qi = 10 - 0.1P. The combined market demand is Q = 34 - 0.4P. The marginal cost and average total cost of providing a round of golf are $20. How much higher will the profit be if the golf course uses third-degree price discrimination instead of charging all golfers the same price?
| A. |
$0 |
| B. |
$7.50 |
| C. |
$10 |
| D. |
$110 |
Question 7: An airline sells seats on its flights to business travelers whose demand is QB = 300 - P and vacation travelers whose demand is QV = 150 - 0.5P. The combined market demand is Q = 450 - 1.5P. The marginal cost and average total cost of providing a seat on a flight are $200. How much higher will profit be if the airline uses third-degree price discrimination instead of charging all travelers the same price?
| A. |
$0 |
| B. |
$250 |
| C. |
$400 |
| D. |
$1,000 |
Question 8: If a firm practices third-degree price discrimination, the price charged should be higher in the market where demand is:
| A. |
Higher. |
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| B. |
Lower. |
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| C. |
More price elastic. |
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| D. |
Less price is elastic. |
Question 9: The key difference between markets where third-degree price discrimination is possible and markets where second-degree price discrimination is possible is whether:
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A. resale is possible. |
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B. customers have the same demand curves. |
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C. firms have market power. |
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D. firms can identify customers' demand before the customers make a purchase. |
Question 10: For price discrimination via a quantity discount to work:
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A. customers who purchase larger quantities must have relatively elastic demand. |
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B. customers who purchase larger quantities must have relatively inelastic demand. |
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C. customers who pay a relatively high price must have relatively elastic demand. |
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D. customers who pay a relatively low price must have relatively inelastic demand. |
Question 11: A firm wants to offer a quantity discount to price-discriminate between buyers who are relatively uninterested in the product and buyers who are obsessively interested in it. The uninterested customers have a demand of QU = 30 - 0.5P. The package offered to them contains 10 units of the good at a price of $40 each. Which of the following packages designed for obsessed customers is incentive compatible?
| A. |
60 units at a price of $10 each |
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| B. |
40 units at a price of $10 each |
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| C. |
60 units at a price of $20 each |
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| D. |
40 units at a price of $20 each |
Question 12: Which of the following conditions do not have to be met in order for indirect price discrimination by versioning to work?
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A.The firm's customers must have different demand curves. |
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B. The marginal costs of producing each version of the product must be the same. |
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C. The firm must be able to prevent resale. |
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D. The firm must have market power. |
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Willingness to pay (per month) |
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Weight machines |
Indoor pool |
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Abe |
$60 |
$50 |
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Betty |
50 |
125 |
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Chris |
25 |
140 |
QUESTION 13
This table shows the willingness to pay off the only three potential customers of a firm that runs both a weight room and an indoor swimming pool. The weight room and pool each have a constant marginal cost of $20 per month. Which of the following pricing strategies yields the highest producer surplus?
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A. $60 for the weight room, $140 for the pool, or $175 for both |
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B. $50 for the weight room, $125 for the pool, or $165 for both |
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C. $25 for the weight room, $50 for the pool, or $70 for both |
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D. $60 for the weight room, $130 for the pool, or $175 for both |
Question 14: Which of the following features is needed to make bundling a possible price discrimination strategy but is not required for any other price discrimination strategies?
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A. Customers must have identical demand curves. |
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B. The firm does not learn about customer demand until after purchase. |
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C. Demand for two products must be negatively correlated. |
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D. The firm must not have market power. |
Question 15: Which of the following features is not needed for price discrimination using a two-part tariff to work?
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A. The firm must have market power. |
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B. The firm must be able to prevent resale. |
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C. The firm must learn about its customers' demands before purchases are made. |
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D. The firm's customers must have different demand curves. |
Question 16: A firm faces a market demand curve P = 50 - 5Q. It has a constant marginal cost of $10. Relative to standard monopoly pricing, how would a block pricing strategy where the first four units can be purchased for a price of $30 each, but two more units can be purchased for an additional $20 each change consumer surplus and producer surplus?
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A. Consumer surplus would decrease by $10, and producer surplus would increase by $20. |
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B. Consumer surplus would increase by $10, and producer surplus would increase by $20. |
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C. Consumer surplus would increase by $20, and producer surplus would increase by $10. |
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D. Consumer surplus would increase by $20, and producer surplus would increase by $20. |
Question 17: Relative to standard monopoly pricing, block pricing:
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A. decreases consumer surplus, increases producer surplus, and increases total surplus. |
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B. increases consumer surplus, increases producer surplus, and increases total surplus. |
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C. decreases consumer surplus, increases producer surplus, and decreases total surplus. |
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D. decreases consumer surplus, decreases producer surplus, and decreases total surplus. |
Question 18: Which of the following results in the highest amount of producer surplus?
| A. |
bundling |
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| B. |
third-degree price discrimination |
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| C. |
block pricing |
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| D. |
two-part tariffs |
Question 19: Which of the following results in the highest amount of consumer surplus?
| A. |
first-degree price discrimination |
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| B. |
third-degree price discrimination |
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| C. |
block pricing |
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| D. |
two-part tariffs |
Question 20: Which of the following results in the highest amount of total surplus?
| A. |
third-degree price discrimination |
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| B. |
block pricing |
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| C. |
first-degree price discrimination |
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| D. |
bundling |
1).
A consumer spends more time searching for a good when her reservation price is:
increased.
reduced.
fixed.
None of the statements is correct.
2).
In the game shown below, firms 1 and 2 must independently decide whether to charge high or low prices.
Which of the following are Nash equilibrium payoffs in the one-shot game?
(0, 0)
(5, -5)
(-5, 5)
(10, 10)
3).
A risk-neutral individual would:
prefer $5 with certainty to a risky prospect with the expected value of $5.
prefer a risky prospect with an expected value of $5 to a certain amount of $5.
be indifferent between a risky prospect with an expect value of $5 to a certain amount of $5.
prefer a risky prospect with the expected value of $0.50 to $5 with certainty.
4).
Snowpeak Ski Resort offers a price for a lift ticket that is barely over its marginal cost, but the high equipment rental fee keeps generating big profits. Which pricing strategy is the management using?
Price discrimination
Two-part pricing
Commodity bundling
Cross-subsidization
5).
The short run is defined as the time frame:
in which there are no fixed factors of production.
in which there are fixed factors of production.
less than one year.
less than three years.
6).
Fixed costs exist only in:
the long run.
capital-intensive markets.
the short run.
labor-intensive markets.
7).
Top of Form
Non-fed ground beef is an inferior good. In economic booms, grocery managers should:
increase their orders of non-fed ground beef.
reduce their orders of non-fed ground beef.
not change their orders of non-fed ground beef.
neither increase, reduce, nor maintain their current orders for non-fed ground beef.
Bottom of Form
8).
Which of the following pricing strategies is NOT used in markets with special cost and demand structures?
Peak-load pricing
Cross-subsidization
Transfer pricing
Low-price guarantees
9).
A perfectly competitive firm faces a:
perfectly elastic demand function.
perfectly inelastic demand function.
demand function with unitary elasticity.
None of the answers is correct.
10).
The special demand structure that induces a firm to use a cross-subsidization strategy is:
perfect substitution among products.
imperfect substitution among products.
independent demand for products.
interdependent demand for products.
11).
Which of the following factors reduces the need for government involvement in the marketplace?
The presence of externalities
The incentive to rent-seek
The need for public goods
Incomplete information
12).
Which of the following statements is true?
A mineral rights auction is not the same as a common-value auction.
An auctioneer is always indifferent between different kinds of auctions.
The Dutch and first-price, sealed-bid auctions are strategically equivalent.
An English auction always yields lower expected revenues than a second-price, sealed-bid auction.
13).
Which of the following is true concerning negative externalities?
Firms tend to produce more than the efficient level of output.
Society gains because firms do not pay the external costs of production.
Perfect competition is better than monopoly from the viewpoint of society even in the presence of negative externalities.
With negative externalities, a monopoly will always produce an output level less than is socially efficient.
14).
Which of the following is true under monopoly?
P > ATC
P > MC
P = MR
P = ATC
15).
Differentiated goods are NOT a feature of a:
perfectly competitive market.
monopolistically competitive market.
monopolistic market.
perfectly competitive market and monopolistic market.
16).
Producer surplus is measured as the area
below the demand curve and above the market price.
above the demand curve and below the market price.
above the supply curve and below the market price.
below the supply curve and above the market price.
17).
Jaynet spends $25,000 per year on painting supplies and storage space. She recently received two job offers from a famous marketing firm â one offer was for $105,000 per year, and the other was for $85,000. However, she turned both jobs down to continue a painting career. If Jaynet sells 30 paintings per year at a price of $9,000 each:
a. What are her accounting profits?
$
b. What are her economic profits?
$
18).
You are the manager of a monopoly that sells a product to two groups of consumers in different parts of the country. Group 1âs elasticity of demand is -2, while group 2âs is -4. Your marginal cost of producing the product is $40.
a. Determine your optimal markups and prices under third-degree price discrimination.
Instruction: Round your answers to two decimal places.
Markup for group 1:
Price for group 1: $
Markup for group 2:
Price for group 2: $
b. Which of the following are necessary conditions for third-degree price discrimination to enhance profits.
Instructions: You may select more than one answer. Click the box with a check mark for the correct answers and click twice to empty the box for the wrong answers. You must click to select or deselect each option in order to receive full credit.
| At least one group has elasticity of demand less than one in absolute value. | |
| There are two different groups with different (and identifiable) elasticities of demand. | |
| We are able to prevent resale between the groups. | |
| At least one group has elasticity of demand greater than 1 in absolute value. |
19).
You are the manager of a firm that receives revenues of $60,000 per year from product X and $80,000 per year from product Y. The own price elasticity of demand for product X is -1.5, and the cross-price elasticity of demand between productY and X is -1.4.
How much will your firm's total revenues (revenues from both products) change if you increase the price of good X by 2 percent?
Instructions: Round your answer to the nearest dollar. Include a minus (-) sign if applicable.
$
