Noise, it is not only this word which designates the noise nuisance of the open space or a concert of honking in traffic jams.
In
Noise.
Why we make errors in judgment and how to avoid them
, Daniel Kahneman, Nobel Prize winner in economics, Olivier Sibony
(photo)
, professor at HEC, and Cass R. Sunstein, professor at Harvard, give a very scholarly, and intriguing definition, of this term so banal.
“As soon as there is judgment, there is noise,”
explains Olivier Sibony.
Noise is when two judgments are different when we would have liked them to be identical. ”
The phenomenon is verifiable in many situations, point out the authors.
For example, when two doctors make different diagnoses for the same patient;
when two judges have a more or less heavy hand for the same crime;
when two recruiters have opposing views on a candidate.
The authors take us behind the psychological and cerebral scenes of the judgments that
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