EC 201 Lecture Notes - Lecture 6: Nash Equilibrium, Economic Surplus, Normal-Form Game

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23 Aug 2018

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Long run supply curve: long run relationship bt p and. If demand changes because it might affect the economic profit. Regulated competitive price: a regulated price that is equal to the mc of production o. Monopolistic competition and oligopoly: characteristics, large # of sellers, differentiate product (more towards a type, jeans ballgown, work clothes, restaurants, allow firms to have monopoly power, drives demand. Some control over price: some control over price, relatively easy entry and exit. Firm demand: make it more elastic, flatter demand curve = more sensitive to prices. Short run equilibrium: similar with monopoly, demand curve is more elastic, does this mean mr is also elastic, get price with q just like monopoly graph. Economic efficiency: dwl with economic surplus and not profit. Normal profit situation: when d curve drops and p=atc. Successful advertising will shift d curve to r, making it more elastic. ***more product differentiation- more inelastic, making companies to become elastic, different prices.

Related Questions

1. If the ATC curve is above the demand curve in a perfectly competitive firm, the firm will have a:

2. If the ATC curve is below the demand curve in a perfectly competitive firm, the firm will have a:

3. Even if in the short run, a perfectly competitive firm has a profit; in the long run, they always break even because:

- low barriers to entry

- profit incentives attract new firms

- perfectly homogenous products

- all of the above

4. A perfect competitor would:

- never charge above market price but might charge below market price

- never charge below market price but might charge above market price

- always change the market price

- none of the above

5. The crucial aspect of competition among firms that leads to the condition of zero profits in the long run is

- the number of firms in the industry is fixed

- free entry and exit of firms in the industry

- fixed costs equal zero

- all costs are at their least cost level.

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30. Economies of scale refer to:

a. the minimum point on the short-run average total cost curve.

b. the flat portion of the long-run average total cost curve.

c. a decrease in the long-run average total cost of production as output increases.

d. a and b.

31. With a natural monopoly, the price a single firm must charge to make a profit:

a. is lower than the price two or more firms would have to charge.

b. is always higher than the price two or more firms would have to charge.

c. is equal to the price of two or more firms would have to charge.

d. is half the price two or more firms would have to charge.

32. The long-run average cost curve is typically:

a. downward-sloping at first but then upward-sloping.

b. upward-sloping at first but then downward-sloping.

c. always downward-sloping.

d. always upward-sloping.

33. According to the contestable market model, if there are no barriers to entry or exit, the price an oligopolist sets will be equivalent to the competitive price.
True or False?

34. In the theory of perfect competition:

a. the market demand curve is horizontal (i.e. elastic).

b. the single firm's demand curve is horizontal (i.e. elastic).

c. the single firm's demand curve is downward sloping.

d. a and b.

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1) A natural monopoly exists when:

a. A few firms collude to make one large firm

b. Firms enter the industry as a result of profit incentives

c. Economies of scale provide large cost advantages to having one firm produce the industry's output

d. Firms naturally maximize regardless of market structure

2) A(n) ____ is a single firm with ___, whereas a(n) ___ implies an industry with ____ firm(s) and ____ .

a. Monopoly; barriers to entry; oligopoly; few; no barriers to entry

b. Oligopoly; no barriers to entry; monopoly; many; easy entry and exit

c. Monopoly; barriers to entry; monopolistic competition; many; easy entry and exit

d. Monopolistic competitor; barriers to entry; monopoly; one; barriers to entry

3) In monopolistic competition:

a. Each firm produces a product identical to that of every other firm in the industry

b. Firms are aware of their strategic interdependence

c. Firms earn large economic profits in the long run

d. Firms earn zero economic profits in the long run

4) A monopolistically competitive industry, such as corn snack chips, and a perfectly competitive industry, like wheat farming, are alike in that:

a. There are many firms in each industry

b. Firms in both types of industries produce similar but not identical products

c. Barriers to entry in both industries are large

d. Firms in both types of industries produce identical products

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EC 201 Lecture Notes - Lecture 6: Nash Equilibrium, Economic Surplus, Normal-Form Game

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