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book2008

Predictably Irrational

Disciplines:
behavioural economics, decision science, consumer psychology

Summary

Explores the hidden irrational forces that shape human decisions — anchoring, free vs. zero pricing, the ownership effect, placebo effects, and self-herding. Argues that irrationality is not random but systematic and therefore predictable.

Core Contribution

Made behavioural economics accessible to a mass audience; extended Kahneman and Thaler's academic work into vivid real-world demonstrations; popularised the notion of 'predictable' rather than random irrationality.

Key Spikes & Highlights

  • anchoring effects
  • zero price effect
  • ownership effect
  • placebo pricing
  • self-herding
  • irrational decision patterns

Historical Influences

Daniel Kahneman Amos Tversky Richard Thaler Robert Cialdini

Intellectual Lineage

No conceptual lineage found.

Allied Works

The Upside of IrrationalityThe Truth About DishonestyDollars and SenseArming the Donkeys podcast

Contemporaries & Peers

Nudge Thinking Fast and Slow The Paradox of Choice

Minds Influenced

Hooked Nudge popularisationUX pricing designfreemium model thinking

Intellectual Posterity

Became a touchstone for product designers, marketers, and policy makers; contributed to the pop-behavioural-economics genre alongside Nudge and Thinking Fast and Slow.

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