Which of the following is a limitation of the N-firm concentration ratio?

Correct answer: It may be insensitive to mergers between firms with large market shares

Explanation

If the top firms merge but the total share of the top N doesn't change significantly (e.g. firm 1 and 2 merge), the ratio might not reflect the reduced competition well.

Other questions

Question 1

Which of the following market structures is characterized by a large number of firms producing identical products?

Question 2

In a perfectly competitive market, the demand curve faced by an individual firm is best described as:

Question 3

A profit-maximizing firm in any market structure will expand production until:

Question 4

Under perfect competition, a firm's short-run supply curve is represented by:

Question 5

In the long run, firms in a perfectly competitive market will earn:

Question 6

A firm in perfect competition should shut down in the short run if price is less than:

Question 7

Which of the following is a key characteristic of monopolistic competition?

Question 8

In monopolistic competition, the demand curve faced by each firm is:

Question 9

Long-run equilibrium in monopolistic competition results in:

Question 10

Advertising expenses are typically high for firms in monopolistic competition because:

Question 11

Which market structure is characterized by a few firms and high interdependence?

Question 12

The kinked demand curve model of oligopoly assumes that:

Question 13

In the Cournot duopoly model, each firm determines its profit-maximizing quantity assuming that:

Question 14

A Nash equilibrium is reached when:

Question 15

In the Stackelberg dominant firm model, the market price is determined by:

Question 16

Which of the following factors makes a collusive agreement in an oligopoly more likely to be successful?

Question 17

A monopolist maximizes profit by producing the quantity where:

Question 18

Which of the following is a necessary condition for a monopolist to practice price discrimination?

Question 19

Compared to a single-price monopoly, perfect price discrimination results in:

Question 20

A natural monopoly is characterized by:

Question 21

Regulating a natural monopoly by forcing it to set price equal to marginal cost usually requires:

Question 22

The N-firm concentration ratio is calculated as:

Question 23

Calculate the 4-firm concentration ratio for an industry with five firms having market shares of 30 percent, 20 percent, 15 percent, 10 percent, and 25 percent.

Question 25

The Herfindahl-Hirschman Index (HHI) is calculated as:

Question 26

If two firms in an industry with market shares of 25 percent and 15 percent merge, the HHI will:

Question 27

One limitation shared by both the N-firm concentration ratio and HHI is that they:

Question 28

Which market structure generally has the lowest barriers to entry?

Question 29

An industry with many firms, differentiated products, and some pricing power is best classified as:

Question 30

A market with a single seller and no close substitutes is a:

Question 31

In the long run, a firm in perfect competition produces at a quantity where:

Question 32

Which of the following is true about the supply function in an oligopoly?

Question 33

If a monopolist engages in rent seeking, the social cost of monopoly:

Question 34

A permanent increase in demand in a perfectly competitive industry will eventually result in:

Question 35

In the short run, if a perfectly competitive firm's marginal revenue is less than its marginal cost, it should:

Question 36

Product innovation in monopolistic competition allows firms to:

Question 37

Over time, the market share of a dominant firm in an oligopoly is likely to:

Question 38

A firm operating in an oligopoly with a kinked demand curve believes that if it raises its price:

Question 39

In the context of the kinked demand curve model, the marginal revenue curve:

Question 40

According to the Cournot model, as the number of firms in an oligopoly increases, the equilibrium market price:

Question 41

Under the Stackelberg model, the 'leader' firm:

Question 42

Collusive agreements in an oligopoly are most likely to be successful when:

Question 43

In the Dominant Firm Model, the dominant firm calculates its demand by:

Question 44

Average cost pricing regulation for a natural monopoly typically forces the firm to:

Question 45

Compared to perfect competition, a monopoly creates a deadweight loss because:

Question 46

If a market has an HHI of 0.1950, this indicates:

Question 47

Which pricing strategy allows a monopolist to capture more consumer surplus?

Question 48

Game theory is most useful for analyzing which market structure?

Question 49

In the short run, a firm in perfect competition will earn a normal profit when:

Question 50

Which of the following is true regarding the long-run supply curve for a firm in perfect competition?