CEA - Certified Economic Analyst Market Structures and Competition Questions and Answers

Question 1

Which of the following best describes the long-run equilibrium for a typical firm in a monopolistically competitive market?

Accepted Answer

The firm earns zero economic profit, but its price is greater than its marginal cost.

Answer

In long-run equilibrium, free entry into a monopolistically competitive market drives economic profits down to zero (Price = Average Total Cost). However, because the firm faces a downward-sloping demand curve due to product differentiation, the profit-maximizing point (where MR=MC) occurs at an output level where price is greater than marginal cost, leading to allocative inefficiency.

Question 2

An industry is characterized by very high fixed costs and continuously declining average costs as output increases, such that one firm can supply the entire market at a lower cost than multiple firms. This situation is known as a:

Accepted Answer

Natural monopoly

Answer

A natural monopoly arises when there are extensive economies of scale, meaning the average cost per unit of production falls as output increases. This cost structure, typically involving high fixed costs (like infrastructure), makes it more efficient for a single firm to serve the entire market.

Question 3

The kinked demand curve model of oligopoly is used to explain which market phenomenon?

Accepted Answer

Price rigidity, where firms are hesitant to change prices.

Answer

The kinked demand curve model assumes that if a firm raises its price, rivals will not follow, leading to a large loss in market share (elastic demand). Conversely, if a firm lowers its price, rivals will match the cut to protect their market share, leading to only a small gain in quantity sold (inelastic demand). This asymmetry creates a 'kink' in the demand curve and makes firms reluctant to change prices, leading to price stability or rigidity.

Question 4

Which of the following market structures is characterized by achieving both allocative efficiency (P=MC) and productive efficiency (P=minimum ATC) in the long run?

Accepted Answer

Perfect Competition

Answer

Perfect competition is the only market structure that achieves both allocative and productive efficiency in long-run equilibrium. Fierce competition forces firms to produce at the lowest possible average total cost (productive efficiency) and to set a price equal to their marginal cost (allocative efficiency). Other structures fail on one or both counts due to market power.

Question 5

Firms in a monopolistically competitive industry, such as local restaurants or coffee shops, primarily compete with each other through which of the following strategies?

Accepted Answer

Differentiating their products through branding, quality, service, and location.

Answer

The hallmark of monopolistic competition is product differentiation. Firms create distinct identities for their products or services through branding, design, quality, customer service, or location to attract customers and gain some market power. This is how they compete, rather than solely on price.

(CEA) Certified Economic Analyst Practice Test

(CEA) Certified Economic Analyst Practice Test

CEA - Certified Economic Analyst Market Structures and Competition Questions and Answers