ECO 201 Lecture Notes - Lecture 1: Opportunity Cost, Fixed Capital, Market Failure

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scarletherring931

18 Apr 2016

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In a monopolist market, a monopolist must sell the same good at different prices (price discrimination) Free entry and exit (perfect resource mobility) Perfect information: show graphically the long run profits for a firm in a perfectly competitive market. Why does it arrive at this point: for a firm in a perfectly competitive market, show a situation of economic profits. All market participants, both consumers and producers, are price takers. Neither consumption or production decisions of individuals affect the market price of the good. The additional revenue one receives from selling an additional unit of the good. Firm in perfect competition demand is perfectly elastic. Increasing: if we double inputs we more than double outputs, if we double outputs we less than double costs, per unit costs (average costs) fall. Decreasing: if we double inputs we less than double outputs, if we double outputs we more than double costs, per unit costs (average costs) raise.

Related Questions

1. A monopoly firm is different from a competitive firm in that:
A. There are many substitutes for the monopolist's product, whereas there are no close substitutes for the competitive firm's product
B. The monopolist's demand curve is perfectly inelastic, whereas the competitive firm's demand curve is perfectly elastic
C. The monopolist is a price-maker, whereas the competitive firm is a price-taker
D. The monopolist always earns economic profits in the long run, whereas the competitive firm never earns economic profits in the long run

2. In the long run, an entrepreneur managing a perfectly competitive firm will earn:
A. Zero normal profits B. Economic profits and normal profits
C. The opportunity cost of operating the firm D. Negative economic profits

3. Refer to the graph above. The maximum possible total profit this monopolist can earn per day is:
A. $0 B. $1800 C. $2400 D. $4200

4. If marginal cost exceeds marginal revenue, the firm

A. is most likely to be at a profit-maximizing level of output.

B. should increase the level of production to maximize its profit.

C. must be experiencing losses.

D. may still be earning a profit.

5. A perfectly competitive firm maximizes profit by producing 500 units of output

purplegerbil891

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

purpleworm770

1. A perfectly competitive firm will continue producing in the short run as long as it can cover its:

A.total cost.
B.average total cost.
C.average variable cost.
D.average fixed cost.

2. A perfectly competitive firm will earn a profit and will continue producing the profit-maximizing quantity of output in the short run if price is:

A.greater than marginal cost.
B.less than marginal cost.
C.less than average variable cost.
D.greater than average total cost.

3. Monopolistic competition is an industry characterized by:

A.a product with many close substitutes.
B.a horizontal demand curve.
C.a small number of firms.
D.barriers to entry and exit.

4. If a perfectly competitive firm increases production from 10 units to 11 units, and the market price is $20 per unit, total revenue for 10 units is:

A.$10.
B.$20
C.$200.
D.$210.

5. The demand curve facing a monopolist is:

A.horizontal, the same as that facing a perfectly competitive firm.
B.downward sloping, the same as that facing a perfectly competitive firm.
C.upward sloping, the same as that facing a perfectly competitive firm.
D.downward sloping, unlike the horizontal demand curve facing a perfectly competitive firm.

6. Suppose that a monopolist increases production from 10 units to 11 units. If the market price declines from $30 per unit to $29 per unit, marginal revenue for the eleventh unit is:

A.$1.
B.$9.
C.$19.
D.$29.

7. Most electric, gas, and water companies are examples of:

A.unregulated monopolies.
B.natural monopolies.
C.restricted-input monopolies.
D.sunk-cost monopolies.

8.If a perfectly competitive firm is producing a quantity that generates P > MC, then profit:

A.is maximized.
B.can be increased by increasing the price.
C.can be increased by decreasing the price.
D.can be increased by increasing production.

ECO 201 Lecture Notes - Lecture 1: Opportunity Cost, Fixed Capital, Market Failure

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