The Directors' Brief

The Directors' Brief

Frameworks

Nudge Theory

How small design choices guide behaviour without removing freedom

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Richard Winfield
Oct 03, 2025
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What It Is

Nudge Theory is a behavioural economics model developed by Richard Thaler and Cass Sunstein, popularised in their 2008 book Nudge: Improving Decisions About Health, Wealth, and Happiness. It shows how small changes in the way choices are presented can influence behaviour while preserving freedom of choice.

The model works by shaping the choice …

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