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MENTAL MODEL · M3090

Porter's Five Forces

Porter's Five Forces
BusinessHigh supportStrategic Management
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Analyze the competitive situation of an industry from five dimensions: 1. Competition among existing competitors; 2. Threat of new entrants; 3. Threat of substitutes; 4. Bargaining power of suppliers; 5. Bargaining power of buyers (customers).

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

A checklist for industry attractiveness. - Don't just focus on competitors (dimension 1). Many industries are 'hard to make money' because suppliers are too strong (e.g., chip manufacturers) or customers are too strong (e.g., Walmart), or they constantly face the threat of substitutes (e.g., digital cameras replaced by smartphones). Industries with strong five forces are 'red oceans' and not worth entering unless you can change one of these forces.

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Anchor fast decisions

Industry profits are jointly determined by five competitive forces: entry barriers, substitutes, bargaining power of upstream and downstream, and rivalry among existing competitors, which together squeeze 'structural attractiveness'. If any force is too strong, it will erode the average industry profit. Strategy lies in changing or avoiding these forces.

MINIMUM ACTION

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Source support: Explicit

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