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ECON 323 Quiz: ECON 323 TAMU Quiz 11

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turquoisegnu128
31 Jan 2019
School
Texas A&M University
Department
Economics
Course
ECON 323
Professor
All

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Document Summary

1: a monopolist has a demand curve given by p = 56 - 2q and a total cost curve given by tc = 20q. The associated marginal cost curve is mc = 20. What is the monopolist"s marginal revenue curve: mr = 56 - q b. c. d. e. Mr = 56 - 4q none of the above: and what is the monopolist"s profit maximizing quantity? b. c. d. e. 18 none of the above: and what price will the monopolist charge? b. c. d. e. 18 none of the above: and how much economic profit will the monopolist earn? b. c. d. e. 162 none of the above: and what quantity would the monopolist pick if instead of charging a single price, it could perfectly discriminate? b. c. d. e. 1b monopoly is a market structure with one firm. 4e a firm with a total revenue tr = 4q could never be a single-price.

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Related Questions

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

Consider the following market demand schedule and total costs for a monopoly.

Q P TR TC MR MC Profit Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā 
0 45 Ā  4 Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā 
1 40 Ā  9 Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā 
2 35 Ā  19 Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā 
3 30 Ā  39 Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā 
4 25 Ā  61 Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā 
5 20 Ā  91 Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā 
6 15 Ā  130 Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā 
7 10 Ā  172 Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā 

a) Fill in the blanks.

b) How is the relationship between price and MR different between monopolistic and perfectly competitive markets?

c) Would the demand curve facing a monopolistic competitive market be more or less elastic than the demand curve facing a monopolist, why? Do firms in a monopolistically competitive market make long-run economic profits, why or why not?

Suppose a monopolist faces a demand curve for its output of P = 300Ć¢ĀˆĀ’Q. This means that the marginal revenue curve of the monopolist is M R = 300 Ć¢ĀˆĀ’ 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?