OCR A-Level Business (H431) H431
Introduction to Business
Business Objectives and Strategy
External Influences
Accounting and Finance
Human Resources
Marketing
Operations Management
External Influences
Market structures and a firm's decision-making power
- 2 things to know
- Components 01, 02 and 03
Overview
Recall questions on the features of monopoly, oligopoly and monopolistic competition, why oligopolists avoid price competition, calculating a four-firm concentration ratio, how market structure decides a firm's control over price, supplier bargaining power, the limits on a monopolist, and price takers.
What you need to know
Answer each one before you reveal it.
Describe the main features of monopolistic competition.
Questions from this subtopic
Each one with the model answer underneath.
- 1
State the key features of a monopoly.
Model answer
A monopoly has one dominant seller, no close substitute for its product, very high barriers to entry, and the power to set its price rather than accept one.
- 2
Describe the main features of an oligopoly.
Model answer
A few large firms supply most of the market, their decisions are interdependent, barriers to entry are high, and they compete mainly through branding and promotion rather than price.
- 3
Describe the main features of monopolistic competition.
Model answer
Many firms compete with differentiated products, barriers to entry are low, and each has a little power over its own price because its product is not identical to any other.
- 4
Why do firms in an oligopoly often avoid competing on price?
Model answer
A price cut is quickly matched by rivals, so nobody gains lasting share and every firm ends up with lower revenue from the same volume.
- 5
What is a concentration ratio?
Model answer
A concentration ratio is the combined market share held by the largest few firms in a market, used to measure how dominated that market is.
- 6
The four largest firms in a market hold shares of 30%, 25%, 15% and 10%. Calculate the four-firm concentration ratio.
Model answer
The four-firm concentration ratio is 80%, because 30 plus 25 plus 15 plus 10 equals 80.
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