ECON-2000 Lecture Notes - Lecture 11: Demand Curve, Strategic Dominance, Decision-Making

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4 Dec 2017

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Chapter 11 monopoly is the power to raise price above marginal cost without fear that other firms will enter the market: a monopoly, a firm with market power. How a firm uses market power to maximize profit: marginal revenue, mr, the change in total revenue from selling an additional unit, marginal cost, mc, the change in total cost from producing an additional unit. To maximize profit, a firm increases output until mr = mc: figure 11. 1 pg. 223 how a monopolist maximizes profit: figure 11. 5 pg. 226 competition maximizes total surplus, monopolies do not maximize total surplus. Economies of scale and the regulation of monopoly: a natural monopoly, said to exist when a single firm can supply the entire market at a lower cost than two or more firms, ex. Your cable company or a subway: figure 11. 6 pg. 230 a monopoly with large economies of scale can have a lower price than competitive firms: figure 11. 7 pg.

Related Questions

(1)	(2)	(3)	(4)	(5)	(6)	(7)
Output (Q)	Price per Unit (P)	Total Revenue (TR)	Marginal Revenue (MR)	Total Cost (TC)	Average Total Cost (ATC)	Marginal Cost (MC)
0	$10			$8
1	9			11
2	8			12
3	7			15
4	6			24
5	5			35
6	4			48

Does this data represent the revenues and costs of a perfect competitive firm or a firm with some degree of âmonopoly powerâ? ______________________

How do you know? ________________________________________________

Fill in the blanks in the table above.

How much output should this firm produce to maximize itâs profit? _____units. What price should this firm charge for its product? $_____ per unit.

This choice of output and price will lead to an economic profit = $______

In a perfectly competitive market, in the long run, the marginal cost of a firm becomes equal to its minimum average total cost.

A) True
B) False

Generally, The price a firm charges for its product is equal to its total revenue divided by the number of units sold.

A) True
B) False

In a perfectly competitive firm to maximize profit a firm must make sure that the price it charges does not exceed its marginal cost.

A) True
B) False

Firms in a competitive market can never make economic profits while they may make biasness (accounting) profits.

A) True
B) False

When a perfectly competitive firm is making a positive economic profit its average revenue must be greater than its average total cost.

A) True
B) False

To maximize its profit a firm always produces at the quantity level where it can charge the highest price and earn the greatest revenue; this strategy is consistent with setting is MC equal to price.

A) True
B) False

When a firm in a competitive market is making a positive economic profit its business profit may be positive or negative.

A) True
B) False

In a perfectly competitive market new entries could result in increases in input prices thus making production costs go up.

A) True
B) False

In a perfectly competitive market, in the long run, each firm produces the maximum amount it can produce and charges the lowest price possible. That is why we consider competitive markets efficient.

A) True
B) False

10.

A monopolist always under-produces and charges a price higher than its MC.

A) True
B) False

11.

As the only supplier in the market a monopolist can charge any price it wishes and buyers have no choice but to pay.

A) True
B) False

12.

The marginal revenue is the additional revenue generated by the last unit of labor hired.

A) True
B) False

13.

The price a monopolist charges may or may not be above its average cost but it is always above its MR.

A) True
B) False

14.

When demand curve is a downward-sloping straight line (linear) marginal revenue will be greater than MC at all output leveles.

A) True
B) False

15.

By setting its MR equal to its MC a monopolist determines the output that would maximize its profit.

A) True
B) False

16.

In the long run each competitive firm would produce at the quantity level where its MC is equal to its MR as well as its ATC.

A) True
B) False

17.

A monopoly always makes an economic profit.

A) True
B) False

18.

When a monopoly's ATC is equal to the price it charges it is making normal economic profits.

A) True
B) False

19.

When a monopoly is making a zero economic profit still its MR>ATC.

A) True
B) False

20.

An increase in demand would enable a monopolist to raise its price while reducing its output.

A) True
B) False

21.

The market supply curve in an increasing-cost industry is:

A) a. upward sloping
B) b. downward sloping
C) c. vertical
D) d. horizontal
E) e. none of the above

22.

The total producer surplus is measured by:

A) a. the area between supply and demand curves.
B) b. the difference between the price the consumer is willing and able to pay and the price suppliers wish to charge to maximize their profits.
C) c. the area between the price consumers actually pay and the demand curve.
D) d. the area between the equilibrium market price and the supply curve.
E) e. the consumer willingness to pay as reflected by the equilibrium market price.

23.

. Economists measure economic (social) welfare by the

A) a. net consumer surplus
B) b. sum of consumer and producer surplus
C) c. sum of the net profits made by the industry's competitive firms
D) d. price consumers are willing to pay for one additional unit of a good
E) e. difference between the total consumer surplus and total producer surplus

lilacfish21

A firm is producing where its marginal costs are at the lowest level. What can one most likely infer from this? a. there is either lost opportunity for further profits by producing more, or the firm should shut-down if it is competitive and price is at that low level. b. It is a price-taker who is producing too much. c. It is a monopolist who is producing the socially optimal quantity. d. The firm is producing rationally.

6. A single-price monopolist sets price a. where MR=demand. b. where supply=demand c. from the demand curve at the quantity for which MC=MR. d. where MR=MC.

7. Assume that the Law of Diminishing Marginal Product applies at the current output level of a competitive firm. The price is $20 and, at the current output level, marginal cost is $16 and average total cost is $20. To maximize profits the firm should: a. produce the current output level, since average revenue (price) = average cost. b. produce more since marginal revenue exceeds marginal cost at current output. c. produce less since marginal revenue is always below average revenue. d. any of the above is possible, without further information.

8. Which of the following statements is true? (i) When a competitive firm sells an additional unit of output, its revenue increases by an amount less than the price. (ii) When a monopoly firm sells an additional unit of output, its revenue increases by an amount less than the price. (iii) Average revenue is the same as price for both competitive and monopoly firms. a. (i) only b. (iii) only c. (i) and (ii) d. (ii) and (iii)

9. If a firm in a competitive market triples the number of units of output sold, then total revenue will a. more than triple. b. less than triple. c. exactly triple. d. All of the above are potentially true.

10. When a competitive firm makes a decision to shut down, it is most likely that a. marginal cost is above average variable cost. b. marginal cost is above average total cost. c. price is below the minimum of average variable cost. d. fixed costs exceed variable costs.

ECON-2000 Lecture Notes - Lecture 11: Demand Curve, Strategic Dominance, Decision-Making

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