ECON101 Lecture Notes - Lecture 9: One Unit, Market Power, Perfect Competition

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crimsonmallard24

16 Feb 2017

School

University of Delaware

Department

Economics

Course

ECON101

Professor

Link Charles

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Document Summary

Chapter 8: (cid:862)price and output determination: pure competition(cid:863) Purpose of chapter: to understand the rationale underlying pricing and output decisions of a firm in a perfectly competitive industry. Market structure: number of firms in the industry. Gives us a good idea bout of the level of monopoly power that"s availa(cid:271)le in this particular industry: similarity of products (goods and services) Is the produ(cid:272)t ho(cid:373)oge(cid:374)eous (cid:894)i. e. (cid:272)or(cid:374) a(cid:374)d (cid:272)e(cid:373)e(cid:374)t(cid:895) or is it like tv"s or automobiles, which have all different kinds of models: knowledge of the markets by key players. Do they have a lot of information or no information: ease of entry and exit in the industry. Characteristics of a perfectly competitive market: large number of buyers and sellers of the product. No one seller can influence the price of the good in question. Too small: ho(cid:373)oge(cid:374)eous produ(cid:272)t (cid:894)i. e. agri(cid:272)ulture, they"re alike(cid:895)

Related Questions

32. Which of the following is not a difference between monopolies and perfectly competitive markets?

A. Monopolies face downward sloping demand curves while perfectly competitive firms face horizontal demand curves.

B. Monopolies charge a price higher than marginal cost while perfectly competitive firms charge a price equal to marginal cost.

C. Monopolies can earn profits in the long run while perfectly competitive firms break even.

D. Monopolies choose to produce the quantity at which marginal revenue equals marginal cost while perfectly competitive firms do not.

40. Which of the following statements is not correct?

A. Both monopolies and monopolistically competitive firms can earn economic profits in the long run.

B. Both monopolistically competitive and perfectly competitive firms can earn economic profits in the short run.

C. Only competitive firms produce the welfare-maximizing level of output.

D. Firms in perfect competition, monopolistic competition, and monopoly maximize profits by producing where marginal revenue equals marginal cost.

43. A monopolistically competitive firm is currently producing 20 units of output. At this level of output the firm is charging a price equal to $20, has marginal revenue equal to $12, has marginal cost equal to $12, and has average total cost equal to $18. From this information we can infer that

A. the profits of the firm are negative.

B. firms are likely to leave this market in the long run.

C. the firm is currently maximizing its profit.

D. All of the above are correct.

A. A competitive firm

can consider only its location in setting the price.
must base its competitive price on product differentiation.
has the ability to set its own price.
must accept the price determined by the intersection of the market supply and demand curves.
has no supply curve.

B. If a firm is making an economic profit, then

the factors of production are being paid their opportunity costs.
there will be no change in the number of firms if the industry is perfectly competitive.
the factors of production are being paid less than their opportunity costs.
the factors of production are being paid more than their opportunity costs.
the firm will exit the industry

C. Along a downward-sloping monopoly demand curve,

marginal revenue is greater than price.
the elasticity of demand is constant.
marginal revenue decreases when the price decreases.
marginal revenue is equal to zero when the price is equal to zero

D. If, in the short run, a perfectly competitive firm is producing at a point where the total cost is greater than total revenue, then the firm should

shut down because economic profits are negative.
continue to produce as long as P > AVC.
continue to produce because accounting profits are positive.
set a higher price for its output.
set a lower price for its output

E. For a perfectly competitive firm, the demand curve is

the marginal revenue curve.
perfectly inelastic.
always equal to marginal cost.
the same as the market demand curve

F. A firm in a(n) industry will have the most elastic demand curve

monopolistic
oligopolistic
monopolistically competitive
perfectly competitive

G. If the demand curve of a monopolist is in the inelastic range, then

total revenue will fall if the price increases.
total revenue will be unchanged if the price increases.
total revenue will rise if the price increases.
the total supply will increase by an equal amount if demand increases.
the price will be unchanged if total revenue increases

H. Monopolistic competition and oligopoly are examples of

monopoly.
perfect competition.
theories of consumer behavior.
imperfect competition.
the extreme cases on the market structure continuum

I. Under which market structure do firms face the flattest (most elastic) demand curve?

perfect competition
monopolistic competition
oligopoly
monopoly

J. At the point of long-run equilibrium for a perfectly competitive firm,

economic profits are zero.
TR > TC.
TR < TC.
P = AVC.
normal profits are zero.

brownlouse308

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

ECON101 Lecture Notes - Lecture 9: One Unit, Market Power, Perfect Competition

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