levo

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.

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Key term

State the key features of a monopoly.

Key term

Describe the main features of monopolistic competition.

Questions from this subtopic

Each one with the model answer underneath.

  1. 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. 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. 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. 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. 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. 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.

Other ways to work this

The same content, four other ways.

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Six ways to work the same material.

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Answer cold, learn it, then prove it stuck. Levo tracks the jump between your first attempt and your last.

Introduction to Business
Business Objectives and Strategy
External Influences
Accounting and Finance

Cram a whole paper in one sitting

Sort every topic into what you know and what you do not, then drill only the weak ones.

Revenue the cost of sales.
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Blank Blitz makes facts automatic

Rapid timed gap-fills on the terms and numbers you need to recall without thinking.

AHow much finance the business needs to raise.
BHow much personal risk the owner is willing to carry.
CHow much control they want to keep.

Build It gets the exam shape right

Assemble a full-mark answer from its marking points, in the order an examiner wants them.

Customer means the person who buys a product and pays for it.
TrueFalse

Test It catches misconceptions

Spot the fault in a statement. The traps are the mistakes students actually make.

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Brain Breaks between sessions

Short focus games to reset attention, so the next set lands better than the last.

Every question in External Influences, on a schedule.

Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.

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