ECON 1B03 Lecture Notes - Lecture 8: Average Variable Cost, Economic Equilibrium, Marginal Revenue

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12 Oct 2016

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ECON 1B03 Full Course Notes

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A perfectly competitive market has the following characteristics; There are many buyers and sellers in the market. Market demand and supply determine price and every buyer and rm takes the market equilibrium price as given- they are price takers. The goods offered by the various sellers are homogeneous (identical) Firms can freely enter or exit the market. There are no barriers to entry such as patents, exclusive rights to a key input to production, etc. Total revenue (tr) for a rm is the selling price times the quantity sold. Since p is a given (a number), the. Total revenue curve is a linear function of q. Here is a drawing of a total revenue and a typical total cost curve. Average revenue, ar, tells us how much revenue a rm receives for the typical unit sold. Average revenue is total revenue divided by the quantity sold. Marginal revenue: the change in total revenue from an additional unit sold.

Related Questions

Homework help and study guide help, all multiple choice

A monopolist:

A) can sell as much as it wants at the chosen price because it is the only seller.

B) can increase the price only if it is willing to decrease the quantity sold.

C) can increase the price and the quantity sold at the same time.

D) is not restricted by the law of demand.

A monopolistically competitive firm:

A) produces where marginal revenue equals marginal cost and charges the price consumers are willing to pay as given by the demand curve.

B) produces where marginal cost equals average total cost and charges the price consumers are willing to pay as given by the demand curve.

C) chooses price and quantity based on where the marginal cost curve meets the demand curve.

D) chooses price and quantity based on where the average total cost curve meets the demand curve.

21) Oligopoly is A) like a monopoly because there are barriers to entry. B) like perfect competition because oligopoly firms all sell homogeneous goods. C) like monopolistic competition because oligopoly firms all sell differentiated goods D) like perfect competition because there are many firms in the industry
ECON 1102 (Microeconomics) Test 4 (043015)

In ________ market structure, a firm's output depends ________.

A) an oligopoly; only on its own marginal revenue and marginal cost curves

B) a monopolistically competitive; in part on its competitors' price and quantity decisions

C) an oligopoly; in part on its competitors' price and quantity decisions

D) a monopolistically competitive; only on its marginal revenue curve

1. Characteristics of competitive markets

The model of competitive markets relies on these three core assumptions:

1.	There must be many buyers and sellers a few players can't dominate the market.
2.	Firms must produce identical products buyers must regard all sellers' products as equivalent.
3.	Firms and resources must be fully mobile, allowing free entry into and exit from the industry.

The first two conditions imply that all consumers and firms are price takers. While the third is not necessary for price-taking behavior, assume for this problem that a market cannot maintain competition in the long run without free entry.

Identify whether or not each of the following scenarios describes a competitive market, along with the correct explanation of why or why not.

Scenario	Competitive?
The government has granted the U.S. Postal Service the exclusive right to deliver mail.	________________
Several stores in the mall sell hooded sweatshirts. Each store's sweatshirts reflect the style of that particular store. Additionally, some makers use higher-quality cotton than others, which is reflected in the apparel's prices.
Two taxi companies serve most of the market in a big city. Consumers don't care about which taxi company they take if they decide it's worth taking a taxi, they flag down the nearest one.	_________________
There are dozens of pasta producers that sell pasta to hundreds of Italian restaurants nationwide. The restaurant owners buy from the cheapest pasta producer available to

copperhamster111

1. Characteristics of competitive markets

The model of competitive markets relies on these three core assumptions:

1.	There must be many buyers and sellers a few players can't dominate the market.
2.	Firms must produce an identical product buyer must regard all sellers' products as equivalent.
3.	Firms and resources must be fully mobile, allowing for free entry into and exit from the industry.

The first two conditions imply that all consumers and firms are price takers. While the third is not necessary for price-taking behaviour, assume for this problem that a market cannot maintain competition in the long run without free entry.

Identify whether or not each of the following scenarios describes a competitive market, along with the correct explanation of why or why not.

Is the scenario	Competitive?
Dozens of companies produce plain white socks. Consumers regard plain white socks as identical and don't care who manufactures their socks.
In a major metropolitan area, one chain of coffee shops has gained a large market share because customers feel its coffee tastes better than that of its competitors.
Scholastik Inc. owns the U.S. copyright to a popular book series. It is the only company with the legal right to publish books in the series in the United States.
In a small town, there are two providers of broadband Internet access: a cable company and the phone company. The Internet access offered by both providers is of the same speed.

amberfly263

ECON 1B03 Lecture Notes - Lecture 8: Average Variable Cost, Economic Equilibrium, Marginal Revenue

ECON 1B03 Full Course Notes

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