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ECO100Y1 Lecture Notes - Lecture 5: Economic Surplus, Opportunity Cost

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School
UTSG
Department
Economics
Course
ECO100Y1
Professor
James Pesando

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Document Summary

Individual a will work for per hour (opportunity cost) Individual b will work for per hour (opportunity cost) Individual c will work for per hour (opportunity cost) Individual d will work for per hour (opportunity cost) A, b, c will work (d will not work) Total producer surplus= (cid:862)steplike(cid:863) supply curves used to illustrate calculation of producer surplus. See: text, chapter 7, figures 7. 4 and 7. 5. The benefit to a worker (supplier) of participating in a market. Producer surplus equals area below price and above supply curve (up to the equilibrium quantity). The wage rate for teaching assistants (tas) is per hour. You would be willing to work as ta for per hour. Answer: up to per hour (which is your producer surplus if you work as a ta and earn per hour) Total surplus = consumer surplus + producer surplus.

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Related Questions

Use the following information to answer the next 3 questions.

The total cost (TC) of producing output (Q) is: TC = 200 + 5Q

8. The fixed cost is

9. The marginal cost is 10. The average total cost is 

11. If the wage rate is $20 per hour and the cost of capital is $25 per hour, then the slope of the isocost curve will be

a) 25/20

b) 1/25

c) 4/5

d) ¼

12. The total cost of producing a given level of output is

a) Achieved when inferior goods are involved

b) Minimized when MPk/Pk = MPL/PL

c) The two inputs are superior

d) All of the above

13. Say PK =10 and PL = 20 and the producer’s total budget is $100. What is the equation of the budget line?

a) PL + PK = 20

b) 100 = PK + PL

c) 100 = 20L + 10K

d) 100 = 10L + 5K

14. Deadweight loss refers to

a) Loss of consumer surplus because of government regulations

b) Losses due to labor unions

c) Net loss of consumer and producer surplus

d) Producers seeking excessive profits

15. An effective price ceiling causes a loss of

a) Both consumer and producer's surplus

b) Producer's surplus only

c) Neither producer nor consumer surplus

d) None of the above

16. Import tariffs generally result in

a) Higher domestic prices

b) Less consumer surplus

c) Higher producer surplus for domestic producers

d) All of the above

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 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.
  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 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
  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

 

1. If your tuition is $20,000 this semester, your books cost $1,000, you can only work 20 rather than 40 hours per week during the 15 weeks you are taking classes and you make $10 per hour, and your room and board are $5,000 this semester, what is your opportunity cost of attending college this semester? Assume that the board and lodging expenses will remain the same even if you do not go to college.
A. $24,000.
B. $26,000.
C. $21,000.
D. $29,000.

2. If a 5 percent change in the price of a good leads to a 10 percent change in the quantity supplied, then the supply of the good is ________ and the elasticity of supply is ________.
A. elastic; 0.5
B. inelastic; 2.0
C. inelastic; 0.5
D. elastic; 2.0