ECON-221 Lecture Notes - Lecture 20: Productive Efficiency, Demand Curve, Marginal Revenue

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turquoiseturtle299

12 Oct 2020

School

Diablo Valley College

Department

Economics

Course

ECON-221

Professor

yoon

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Document Summary

Price discrimination: price discrimination the practice of charging different buyers different prices for essentially the same good or service, where differences do not simply reflect differences in costs of supplying different buyers. Firms must be able to separate buyers into groups on the basis of their willingness to pay for the good and to make sure that buyers with high willingness to pay do not purchase at the discount price. To price discriminate successfully, a firm must avoid alienating buyers by giving the impression of unfair discrimination or price gouging: charging the same price. Profit maximize through selling to high end of the market with high reservation prices. All buyers are willing to pay a price high enough to cover marginal cost. With perfect price discrimination, benefit to monopolist of selling another unit is the same as the benefit to society. Monopolists marginal revenue is the same as the demand curve.

Related Questions

Question 1

The amount of profit that can be achieved using uniform pricing is __________ the profit that can be achieved from price discrimination because of _______.

Select one:

a. greater than; the cost of trying to determine every single consumer's individual demand (willingness to pay) is prohibitively expensive.

b. less than; uniform pricing is more costly so the ATC and AVC curves are higher than they are under price discrimination.

c. equal to; the TR and TC curves are equivalent under either pricing scheme, so there is no profit advantage to either scheme.

d. less than; total demand includes people who would be willing to pay more than, as well as less than, the uniform market price.

Question 2

A firm selling in two markets is practicing price discrimination:

Select one:

a. when it refuses to sell the good to some group of consumers.

b. anytime it charges different consumers different prices.

c. when it charges the same price to different consumers as long as they differ in their demand for the good.

d. when it is charging different consumers, different prices, and the price difference is not based upon cost differences.

Question 3

To successfully practice price discrimination:

Select one:

a. consumers in two separate markets must have identical demand.

b. the firm must possess market power.

c. it must be easy for consumers in one market to sell to consumers in the other market.

d. the firm must be a pure monopoly.

Question 4

If it could practice first-degree price discrimination, a firm with market power could earn:

Select one:

a. its typical monopoly profit as well as the area which, under uniform pricing, would represent the deadweight loss associated with market power.

b. an area half the size of its monopoly power under uniform pricing.

c. its typical monopoly profit as well as the area which, under uniform pricing, would represent consumer surplus.

d. its typical monopoly profit as well as the area which, under uniform pricing, would represent consumer surplus and the deadweight loss associated with market power.

erinant26

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?

		A. The firm must have market power.
		B. The firm must be able to prevent resale and arbitrage.
		C. The firm must eventually learn about its customers' demands.
		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.
	B.	lower consumer surplus, higher producer surplus, and higher total surplus.
	C.	lower consumer surplus, higher producer surplus, and lower total surplus.
	D.	lower consumer surplus, lower producer surplus, and lower total surplus.

Question 3: Relative to perfect competition, first-degree price discrimination results in:

		A. higher consumer surplus, higher producer surplus, and higher total surplus.
		B. lower consumer surplus, higher producer surplus, and equal total surplus.
		C. lower consumer surplus, higher producer surplus, and equal total surplus.
		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?

		A. market power
		B. prevention of resale
		C. identification of each customer's demand before purchase
		D. customers with different demand curves

Question 6: A golf course has frequent players whose demand is Q_f = 260 - 0.4P and infrequent players whose demand is Q_i = 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 Q_B = 300 - P and vacation travelers whose demand is Q_V = 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.
	B.	Lower.
	C.	More price elastic.
	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:

		A. resale is possible.
		B. customers have the same demand curves.
		C. firms have market power.
		D. firms can identify customers' demand before the customers make a purchase.

Question 10: For price discrimination via a quantity discount to work:

		A. customers who purchase larger quantities must have relatively elastic demand.
		B. customers who purchase larger quantities must have relatively inelastic demand.
		C. customers who pay a relatively high price must have relatively elastic demand.
		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 Q_U = 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
	B.	40 units at a price of $10 each
	C.	60 units at a price of $20 each
	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?

		A.The firm's customers must have different demand curves.
		B. The marginal costs of producing each version of the product must be the same.
		C. The firm must be able to prevent resale.
		D. The firm must have market power.

	Willingness to pay (per month)
	Weight machines	Indoor pool
Abe	$60	$50
Betty	50	125
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?

		A. $60 for the weight room, $140 for the pool, or $175 for both
		B. $50 for the weight room, $125 for the pool, or $165 for both
		C. $25 for the weight room, $50 for the pool, or $70 for both
		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?

		A. Customers must have identical demand curves.
		B. The firm does not learn about customer demand until after purchase.
		C. Demand for two products must be negatively correlated.
		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?

		A. The firm must have market power.
		B. The firm must be able to prevent resale.
		C. The firm must learn about its customers' demands before purchases are made.
		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?

		A. Consumer surplus would decrease by $10, and producer surplus would increase by $20.
		B. Consumer surplus would increase by $10, and producer surplus would increase by $20.
		C. Consumer surplus would increase by $20, and producer surplus would increase by $10.
		D. Consumer surplus would increase by $20, and producer surplus would increase by $20.

Question 17: Relative to standard monopoly pricing, block pricing:

		A. decreases consumer surplus, increases producer surplus, and increases total surplus.
		B. increases consumer surplus, increases producer surplus, and increases total surplus.
		C. decreases consumer surplus, increases producer surplus, and decreases total surplus.
		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
	B.	third-degree price discrimination
	C.	block pricing
	D.	two-part tariffs

Question 19: Which of the following results in the highest amount of consumer surplus?

	A.	first-degree price discrimination
	B.	third-degree price discrimination
	C.	block pricing
	D.	two-part tariffs

Question 20: Which of the following results in the highest amount of total surplus?

	A.	third-degree price discrimination
	B.	block pricing
	C.	first-degree price discrimination
	D.	bundling

crimsonbadger400

1. if the government attempts to break up a natural monopoly to enforce competition in an industry

A. the average cost of producing the good will increase

B. the smallest firm will have a significant cost advantage over the larger, less efficient firms

C. the average cost of producing the good will decrease

D. the price paid by consumers will be expected to remain the same.

2. which statement is true?

A. the monopolistic competitor always makes a profit in the short run

B. the monopolistic competitor operates at peak efficiency

C. product differentiation takes place in the minds of the buyers

D. none of these statements is true

3. Price discrimination

A. occurs when a good or service is resold

B. is prohibited by law

C. occurs when a seller charges two or more prices for the same good or service

D. occurs when the seller charges different prices for different quality products

4. Monopolistic competition may lead to each of the following except

A. inefficiency

B. overdifferentiation

C. overcapacity

D. monopoly profits

5. In the long run in monopolistic competition

A. most firms are making a profit

B. the absence of entry barriers ensures that there are no profits

C. economies of scale ensure that there are no profits

D. most firms are losing money

6. Price discrimination means

A. charging different prices for identical goods that have identical production costs

B. paying wages according to race or sex rather than productivity

C. exploiting the working masses by charging the highest single price possible.

D. eliminating all costs so that only pure profits are realized

7. The definition of monopolistic competition includes

A. few firms and ease of entry and exit

B. few firms and barrieres to entry and exit

C. many firms and barriers to entry and exit

D. many firms and ease of entry and exit

8. Which statement is true?

A. there are many firms in a monopolistically competitive industry.

B. monopolistic competitors produce an identical product

C. in order for product differentiation to take place, there must be clear physical differences amont the products sold

D. none is true

9. Long-run equilibrium for firms in monopolistically competitive industries is similar to that for firms in perfect competition in that

A. price equals minimum possible average total cost

B. price equals marginal cost

C. marginal revenue equals average total cost

D. price equals average total cost

10. Which statement is false?

A. Oligopolies are illegal in most states

B. most oligopolies engage in outright collusion

C. Ford motor company is an oligopoly

D. none of these statements is false

ECON-221 Lecture Notes - Lecture 20: Productive Efficiency, Demand Curve, Marginal Revenue

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