ECO101H1 Chapter Notes - Chapter 14: Average Variable Cost, Marginal Revenue, Profit Maximization

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Competitive market a market in which there are many buyers and sellers so that each has a negligible impact on the market price. Marginal revenue the change in total revenue from an additional unit sold. Sunk cost a cost that has already been committed and cannot be recovered. Characteristics: there are many buyers and sellers in the market, the goods offered by the various sellers are largely the same, firms can freely enter the market. Total revenue is proportional to the amount of output. How much revenue does the seller receive from the typical unit? : average revenue, for all firms, average revenue = price of the good. How much additional revenue does the seller receive if it increases production by 1 unit? : marginal revenue, for competitive firms, marginal revenue = price of the good. To find profit maximizing quantity: compare marginal revenue and marginal cost from each unit produced.

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11. When firms have an incentive to exit a competitive market, their exit will:

a. drive down market prices.

b. drive down the profits of existing firms in the market.

c. decrease the quantity of goods supplied in the market.

d. All of the above are correct.

12. If a perfectly competitive firm currently produces where the price is greater than the marginal cost, it:

a. will increase its profits by producing more.

b. will increase its profits by producing less.

c. is making positive economic profits.

d. is making negative economic profits.

13. Does a consumer well being vary along a demand curve?

a. Yes. When price increases, consumers move to a lower indifference curve.

b. Yes. When price increases, consumers move to a higher indifference curve.

c. No. When price increases, consumers stay on the same indifference curve.

d. No. When price increases, the higher price has no effect on budget constraints or indifference curves.

e. None of the above

14. If a competitive firm sets its output such that marginal revenue, marginal cost, and average total cost are equal, economic profit must be:

a. Negative

b. positive

c. Zero

d. Indeterminate from the given information

15. Which of the following is a characteristic of a perfectly competitive market?

a. Firms are price setters.

b. There are few sellers in the market.

c. Firms can exit and enter the market freely.

d. All of the above are correct.

beigelouse899

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

In which of the following ways is a monopoly beneficial to an economy?

A. Monopoly profits give firms more reason to invest in the creation of new products through research and development.

B. Firms that are allowed monopoly profits search out innovative technologies that they can bring to market.

C. With natural monopolies, costs may be lower than those that would exist in competitive markets with many producers.

D. All of the above.

Which of the following is a difference between a perfectly competitive market and a monopoly?

A. The market demand curve faced by a perfectly competitive firm is horizontal, while the market demand curve in a monopoly is downward-sloping.

B. The equilibrium price in a perfectly competitive market exceeds marginal revenue, while the equilibrium price in a monopoly equals marginal revenue.

C. The sellers in a perfectly competitive market are price-makers, while a seller in a monopoly market is a price-taker.

D. There are huge barriers to entry in a perfectly competitive market, while there are no barriers to entry in a monopoly.

In the United States in 2011, there were 104 fatalities per 100,000 workers in the logging industry. This is the second-highest rate after the fisheries industry. Although the fatality rate in this industry is so high, many workers still choose to work as loggers.

What could explain this?

A. Workers choose these high-risk jobs because they are willing to bear an occupational risk to earn a higher wage.

B. Low-risk jobs are already taken, so workers must choose their next-best alternative, which in this case is logging.

C. Workers in these industries lack human capital and must choose to work as loggers.

D. Loggers must be indifferent between low-risk and high-risk jobs.

In the case of a decrease in product prices:

A. the quantity effect always dominates the price effect.

B. the price effect always dominates the quantity effect.

C. when the price effect dominates the quantity effect, total revenue decreases.

D. when the quantity effect dominates the price effect, total revenue decreases

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ECO101H1 Chapter Notes - Chapter 14: Average Variable Cost, Marginal Revenue, Profit Maximization

ECO101H1 Full Course Notes

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