Source identity:

ddx:
  id: resource.hbs-five-forces

HBS Five Forces

Source

• URL: https://www.isc.hbs.edu/strategy/business-strategy/Pages/the-five-forces.aspx
• Accessed: 2026-05-12

Summary

Harvard Business School’s Institute for Strategy and Competitiveness presents Porter’s Five Forces as a framework for understanding industry structure and how economic value is divided among competitors, buyers, suppliers, entrants, and substitutes. The framework helps teams assess industry attractiveness and choose where to compete and how to position for success.

Relevant Findings

• Competition is broader than direct rivals; substitutes, buyers, suppliers, and new entrants also shape market pressure.
• Industry structure affects profitability and should inform positioning.
• Strategy should identify where to compete and how to position against the strongest competitive forces.
• Rivalry is more intense when competitors are numerous, growth is slow, fixed costs are high, or competitors have different goals and approaches.

HELIX Usage

This resource informs the Competitive Analysis artifact. HELIX uses it to keep competitive analysis focused on market forces, substitutes, pressure, and positioning instead of only listing feature differences.

Authority Boundary

This resource provides a strategy lens. It does not supply project-specific competitor facts, customer evidence, pricing, or product requirements.