Question 1

What is imperfect competition in the context of IB DP Economics?

Accepted Answer

Imperfect competition refers to market structures that fall between perfect competition and monopoly. In the IB DP Economics curriculum, it includes monopolistic competition and oligopoly. These structures are characterized by firms having some control over pricing, differentiated products, and barriers to entry, which contrast with the assumptions of perfect competition.

Question 2

How does monopolistic competition differ from perfect competition?

Accepted Answer

Monopolistic competition differs from perfect competition primarily through product differentiation and market power. In monopolistic competition, firms sell products that are similar but not identical, allowing them to have some control over pricing. Unlike perfect competition, where firms are price takers, firms in monopolistic competition can influence prices due to brand loyalty and product differentiation.

Question 3

What are the key characteristics of an oligopoly?

Accepted Answer

An oligopoly is a market structure characterized by a small number of large firms that dominate the market. Key features include interdependent decision-making, significant barriers to entry, and the potential for collusion. Firms in an oligopoly may engage in non-price competition and strategic behavior to maintain market share.

Question 4

Why is non-price competition significant in imperfect competition?

Accepted Answer

Non-price competition is significant in imperfect competition because it allows firms to differentiate their products and build brand loyalty without altering prices. This includes advertising, product quality improvements, and customer service enhancements. In markets like monopolistic competition and oligopoly, non-price competition is crucial for firms to gain a competitive edge and attract consumers.

Question 5

How do barriers to entry affect market structures in imperfect competition?

Accepted Answer

Barriers to entry play a crucial role in determining the dynamics of imperfect competition. In monopolistic competition, barriers are relatively low, allowing new firms to enter the market easily. However, in an oligopoly, significant barriers such as high startup costs, economies of scale, and legal restrictions prevent new competitors from entering, allowing existing firms to maintain their market power and influence prices.

Market Structure on Imperfect Competition I

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