MENTAL MODEL · M10781

Porter's Four Corners Analysis

SystemsHigh supportSystems Theory

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Updated 2026-08-16

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INTRODUCTION

English translation pending.

CORE DEFINITION

Four angles for analyzing a competitor: drivers, its goals and motives; assumptions, what it believes about itself and the industry; current strategy, what it is doing now; and capability, its strengths and weaknesses. It is a competitor-profile template that systematically answers why the rival acts as it does and what it will likely do next.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Profile the motives: collect the rival's public goals and the incentives driving them. - Expose the assumptions: find what it wrongly believes about itself or the market. - Infer the next move: chain motivation, cognition, current action, and real capacity.

anchor

Anchor fast decisions

The four corners expose the chain behind a rival's behavior, from motive through perception to action to strength: drivers and assumptions set intent, while capability and current strategy set execution. To predict the next move you read that chain rather than any isolated action.

MINIMUM ACTION

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Practice this model in one real situation:

Collect the competitor's stated goals and what rewards its leaders. 2. List the assumptions it seems to hold about itself and the market. 3. Map its current strategy and the resources behind it. 4. Chain the four corners into the two or three moves it is most likely to make.

Check to track your progress (stored locally)

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Source support: Explicit

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en.wikipedia.orghttps://en.wikipedia.org/wiki/Porter%27s_four_corners_modelZH · Explicit
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