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Strategy, Risk and Managing Change

Porter's five forces

  • 2 things to know
  • Component 03

Overview

Recall questions on Porter's five forces, the threat of substitution and of new entry, buyer and supplier power, competitive rivalry, how a business uses the model to improve its position, and its limitations.

What you need to know

Answer each one before you reveal it.

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Key term

Name the five forces in Porter's model.

Key term

What does Porter's five forces model set out to explain?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Name the five forces in Porter's model.

    Model answer

    The five forces are the threat of substitution, the threat of new entry, buyer power, supplier power and competitive rivalry.

  2. 2

    What does Porter's five forces model set out to explain?

    Model answer

    It explains how attractive an industry is by showing where the profit available in that industry is competed away.

  3. 3

    What is meant by the threat of substitution?

    Model answer

    It is the risk that customers meet the same need with a different kind of product altogether, rather than by buying from a direct competitor.

  4. 4

    Give an example of a substitute, rather than a direct competitor, for a rail operator.

    Model answer

    A long-distance coach service, or a video call that removes the need to make the journey at all.

  5. 5

    What determines the threat of new entry into an industry?

    Model answer

    The height of the barriers to entry, such as the capital required, brand loyalty, economies of scale held by incumbents and the need for regulatory approval.

  6. 6

    How does strong buyer power reduce the profitability of an industry?

    Model answer

    Powerful buyers can demand lower prices or longer credit, so margins are squeezed across every supplier competing to keep their business.

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