Exam 15: Monopoly and Antitrust Policy

Many biologic drug manufacturers are pushing for patent protection to be extended to 12 years before generics are allowed to be introduced to the market.This reflects which of the following barriers to entry?

What is a network externality?

To be a natural monopoly a firm must

Which of following is the best example of a monopoly if we use a broader definition of monopoly?

Explain why the monopolist has no supply curve?

A monopoly firm's demand curve

Arnold Harberger was the first economist to estimate the loss of economic efficiency due to market power.Harberger found that

Figure 15-4 Figure 15-4 shows the demand and cost curves for a monopolist. -Refer to Figure 15-4.What is the profit-maximizing/loss-minimizing output level?

For a natural monopoly to exist

A monopoly is characterized by all of the following except

A monopoly is a firm that is the only seller of a good or service that does not have a close substitute.

A United States government patent lasts

The International Nickel Company of Canada is often cited as an example of monopoly.What was the source of the barrier to entry that gave this firm monopoly power?

A natural monopoly is most likely to occur in which of the following industries?

Figure 15-3 Figure 15-3 above shows the demand and cost curves facing a monopolist. -Refer to Figure 15-3.Suppose the monopolist represented in the diagram above produces positive output.What is the profit/loss per unit?

Which of the following is true for a monopolist?

Consider two industries,industry W and industry X.In industry W there are five companies,each with a market share of 20% of total sales.In industry X,there are six companies.One company has a 50% market share and each of the other five firms has a market share of 10%. a.Calculate the four-firm concentration ratio for each industry. b.Calculate the Herfindahl-Hirschman Index (HHI)for each industry. c.What do the values of the two concentration measures imply about the degree of market power in the two industries?

The most profitable price for a monopolist is

Figure 15-9 Figure 15-9 shows the demand and cost curves for a monopolist. -Refer to Figure 15-9.What is the difference between the monopoly's price and perfectly competitive industry's price?

Figure 15-9 Figure 15-9 shows the demand and cost curves for a monopolist. -Refer to Figure 15-9.At the profit-maximizing quantity,what is the difference between the monopoly's price and the marginal cost of production?