WHY THESE MATTER +WTM PRESS · BOOK SIGNAL
A Flaw in Human Judgment
Daniel Kahneman, Olivier Sibony and Cass R. Sunstein
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A system can produce unfair variation even when its average judgement looks reasonable.
Noise shifts attention from directional bias to unwanted inconsistency between judgements. It is useful for organisations making repeated evaluations: hiring, forecasting, assessment and prioritisation. Begin by having people evaluate comparable cases independently, then examine the spread before reaching for a new policy or training session.
WTM’s judgement: a valuable operational companion to Thinking, Fast and Slow. Variation is not automatically an error; legitimate differences in context and values must be distinguished from inconsistency. A noise audit needs a defensible standard and careful treatment of sensitive decisions, not merely tighter agreement.
ONE PRACTICAL NEXT STEP
Run three independent assessments of the same low-risk case and discuss the sources of disagreement before averaging them.
Research-based reading note: publisher synopsis; no claim of a full-text review.
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Linked US edition ISBN 9780316451390; format options may vary.
Daniel Kahneman (1934–2024) was a psychologist whose research with Amos Tversky transformed understanding of judgement and decision-making. He received the 2002 Nobel Prize in Economic Sciences and wrote Thinking, Fast and Slow.
Official biography or website ↗Deceased author. No official personal, estate or archive social account verified from his primary university profile and memorial.
Olivier Sibony is a writer, educator and consultant specialising in strategy and decision-making. His research examines cognitive biases and organisational decision processes. He co-authored Noise with Daniel Kahneman and Cass R. Sunstein.
Official biography or website ↗Cass R. Sunstein is a legal scholar and Harvard's Robert Walmsley University Professor. His work examines law, regulation and behavioural economics; his books include Nudge, co-written with Richard Thaler, and research on decision-making and social influence.
Official biography or website ↗No personal social account verified by a link from the primary university pages reviewed. Harvard Law's institutional footer accounts are excluded; unverified accounts bearing Sunstein's name are not presented as official.
Catalogue updated: 10 October 2026. The Webflow Press page is the editable editorial record; this portal carries the launch catalogue edition.
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