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The five competitive forces that shape strategy.

Michael E Porter1

  • 1Harvard Business School, Boston, USA.

Harvard Business Review
|February 15, 2008
PubMed
Summary
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Michael Porter's Five Forces framework analyzes industry competition to determine profitability. Understanding these forces helps businesses build defenses or find advantageous market positions for strategic advantage.

Area of Science:

  • Business Strategy
  • Industrial Organization Economics

Background:

  • Michael Porter's seminal 1979 HBR article introduced the Five Forces framework.
  • This framework has significantly influenced academic research and business strategy for decades.

Purpose of the Study:

  • To reaffirm and extend the classic Five Forces analysis for strategy formulation.
  • To provide practical guidance on implementing the Five Forces analysis.
  • To explore the implications and applications of the framework in contemporary business environments.

Main Methods:

  • Reaffirmation and extension of the Five Forces model.
  • Analysis of how five competitive forces (rivalry, supplier power, customer power, threat of new entrants, threat of substitutes) shape industry profitability.
  • Exploration of practical applications and strategic implications.

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Main Results:

  • The Five Forces framework dictates how economic value is distributed within an industry.
  • Industry profitability is determined by the interplay of these forces, not solely by growth rate.
  • Strategic positioning involves defending against or weakening these forces.

Conclusions:

  • Understanding the Five Forces is crucial for effective strategy formulation and achieving sustainable profitability.
  • Companies can actively influence industry forces to create more favorable market structures.
  • The framework provides insights into why industries are profitable and how to adapt to competitive landscapes.