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ECON 1B03 Lecture Notes - Lecture 10: Monopolistic Competition, Perfect Competition, Root Mean Square

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violetmuskrat59
12 Oct 2016
School
McMaster University
Department
Economics
Course
ECON 1B03
Professor
Dr.P

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ECON 1B03 Full Course Notes
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ECON 1B03 Full Course Notes
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Document Summary

Product differentiation: each rm"s product is at least slightly different from another rm"s. So, each rm faces a downward sloping demand curve, like a monopolist. Free entry and exit (no barriers to entry) The monopolistically competitive rm maximize pro ts when it produces its mc = mr and charge based on demand (just like a monopoly) In the short run, a monopolistically competitive rm behaves just like a monopolist. In the short run, short run economic pro ts encourage new. This increases the number of products offered, decreases the demand faced by rms already in the market. Existing rms demand curves shift left, pro ts fall. If there are positive pro ts or losses, rms will enter or exit until the rms are making exactly zero economic pro t, just like perfect competition. Firms make zero economic pro ts when p = atc. However, zero pro t looks different than it does for perfect competition.

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Related Questions

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

If I were to open a business, I would choose the monopolistic competitive market.

Under monopolistic competition, with low barriers to entry and low capital requirements, firms are free to enter into or exit from the industry at any time. In addition, in monopolistic competition, large numbers of sellers offer closely related but not homogeneous products. This is the reason why each firm has a limited share of the market and has limited control over the market price. Thus, changes in one firm’s output have only a slight impact on market price or it also means that firms in monopolistic competition are price setters rather than price takers. In the short run, firms can make excess economic profits. However, as barriers to entry are low, other firms have an incentive to enter the market, increasing the competition, until overall economic profit is zero.

In order to yield the greatest profit, a firm engaged in monopolistic competition will focus on product quality, location, service, and advertising, since the major tool of competition is product differentiation. For example, if I opened a restaurant, the restaurant would have a menu with different dishes and different prices to other restaurants nearby and the prices of the dishes also would depend on its location, the food ingredients, the food quality, and the speed of service. With the purpose of gaining profit for the restaurant, I would try to be dynamically efficient, innovative and develop new ways to attract and retain local custom as well as maintain cost efficiency, which could keep the cost below the average profit.


I need a peer reply for this discussion and it should be 250 at least


1.
If firms in a monopolistically competitive market are earningpositive profits,
A) firms will likely be subject to regulation.
B) barriers to entry will be strengthened.
C) some firms must exit the market.
D) new firms will enter the market.
2.

Panel c in the set of figures shown is consistent with a firm in amonopolistically competitive market that is


A) earning profit and is in both short-run and long-runequilibrium.
B) earning economic profit and is in short-run equilibrium, but notlong-run equilibrium.
C) earning profit and is in long-run equilibrium, but not short-runequilibrium.
D) earning a negative profit and is not in equilibrium.
3.
When a profit-maximizing firm in a monopolistically competitivemarket is producing the long-run equilibrium quantity,
A) its marginal revenue will exceed its marginal cost.
B) its average revenue will equal its marginal cost.
C) it will be earning positive economic profits.
D) its demand curve will be tangent to its average-total-costcurve.
4.
Monopolistic competition differs from perfect competition becausein monopolistically competitive markets
A) each of the sellers offers a somewhat different product.
B) strategic interactions between firms is vitally important.
C) there are barriers to entry.
D) all firms can eventually earn economic profits.
5.
The free entry and exit of firms in a monopolistically competitivemarket guarantees that
A) economic losses can persist into the long run, but not economicprofits.
B) both economic profits and economic losses can persist into thelong run.
C) economic profits can persist into the long run, but not economiclosses.
D) both economic profits and economic losses disappear in the longrun.
6.


Panel (a) shows a profit-maximizing monopolistically competitivefirm that is

A) All answers are correct
B) earning a zero profit.
C) charging a price that is equal to average total cost.
D) in long-run equilibrium.
7.
Since a firm in a monopolistically competitive market faces a
A) perfectly elastic demand curve, it will always operate withexcess capacity.
B) downward-sloping demand curve, it will always operate atefficient scale.
C) perfectly inelastic demand curve, it will always operate atefficient scale.
D) downward-sloping demand curve, it will always operate withexcess capacity.
8.
In a monopolistically competitive market,
A) firms can enter or exit the market without restriction.
B) each firm takes the price of its product as given.
C) each firm produces a product that is essentially identical tothe products of other firms in the market.
D) there are only a few sellers.
9.
The fact that there is a great deal of advertising of men’s shavingproducts indicates that
A) it costs firms very little to produce those products.
B) the market for those products is perfectly competitive.
C) those products are highly differentiated.
D) All answers are correct
10.
A profit-maximizing firm in a monopolistically competitive marketdiffers from a firm in a perfectly competitive market because thefirm in the monopolistically competitive market
A) has no barriers to entry.
B) faces a downward-sloping demand curve for its product.
C) faces a horizontal demand curve at the market clearingprice.
D) is characterized by market share maximization.