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MGEA02H3 Chapter 10: Chapter 10

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School
UTSC
Department
Economics for Management Studies
Course
MGEA02H3
Professor
Gordon Cleveland

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MGEA02H3 Full Course Notes
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Document Summary

Chapter 10: monopoly, cartels, and p rice discrimination. a monopoly occurs when the output of an entire industry is produced and sold by a single firm, called a monopolist or a monopoly firm. because a monopolist is the sole producer of the product that it sells, the demand curve it faces is simply the market demand curve for that product. unlike a perfectly competitive firm, a monopolistic faces a negatively sloped demand curve. For a monopolist, sales can be increased only if price is reduced, and price can be increased only if sales are reduced. marginal revenue is the revenue resulting from the sale of one more unit of the product. The monopolist"s marginal revenue is less than the price at which it sells its output. Thus the monopolist"s mr curve is below its demand curve. mr = change in tr / change in q.

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Related Questions

Suppose a monopolist faces a demand curve for its output of P = 300−Q. This means that the marginal revenue curve of the monopolist is M R = 300 − 2Q. Assume that the marginal cost of production is constant and equal to $40.

a) Write down an expression for the monopolists profit, as a function of the quantity of output it produces.

b) If the monopolist must charge the same price for all units of output that it sells (that is, if the monopolist is a single price monopolist), what level of output will maximise the monopolists profit? What price will the monopolist charge? What is its level of profit?

c) If this were a competitive market instead of a monopoly, what level of output would be produced and what price would be charged? What is the level of profit for firms if it were perfectly competitive?

d) Draw a diagram of demand, marginal revenue, and marginal cost that illustrates your answer to part b). From this work out consumer surplus and producer surplus.

e) Draw the same diagram but for your answer to c), the case of the competitive market. From this work out consumer surplus and producer surplus. How much deadweight loss is there from the monopoly? Why?

1. Which of the following is true under a monopoly?

  • A. Monopolist chooses the highest possible price.
  • B. Monopolist chooses a price that is always higher than marginal cost of production.
  • C. Marginal revenue of a monopolist is price.
  • D. None of the above are true for monopoly.

2. You are the manager of a monopoly that faces a demand curve described by P = 230 -20Q. Your costs are C = 5 +30Q. The profit-maximizing output for your firm is:

  • A. 4
  • B. 5
  • C. 6
  • D. 7

3. Which of the following is true?

  • A. A monopolist produces on the inelastic portion of its demand.
  • B. A monopolist always earns an economic profit.
  • C. The more inelastic the demand, the closer marginal revenue is to price.
  • D. In the short run a monopoly will shutdown if P < AVC.

4. In a competitive industry with identical firms, long rum equilibrium is characterized by:

  • A. P = AC
  • B. P = MC
  • C. MR = MC
  • D. All of the above

5. You are the manager of a firm that sells its product in a competitive market at a price of $50. Your firm's cost function is C = 40 + 5Q2. Your firm's maximum profits are:

  • A. 125
  • B. 250
  • C. 100
  • D. 85

6. A perfectly competitive firm faces:

  • A. A perfectly elastic demand function
  • B. A perfectly inelastic demand function
  • C. a demand function with unitary elasticity
  • D. none of the above

1. For a single-price monopoly, marginal revenue is

a. equal to the price for the first unit of output.

b. less than the price for all units of output after the first unit.

c. greater than price. horizontal.

d. a and b

 

 

2. The demand curve facing a monopolist is:

a) horizontal, the same as that facing a perfectly competitive firm.

b) upward sloping, the same as that facing a perfectly competitive firm.

c) downward sloping, unlike the horizontal demand curve facing a perfectly competitive firm.

d) downward sloping, the same as that facing a perfectly competitive firm.