Association Française Edwards Deming
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The Red Beads Experiment

Bad luck !

Imagine that you have to take 50 beads at random in a box containing 400 red beads and 2000 white beads. A plain calculation shows that you will get an average of 10 red beads. Sorting the beads is strictly forbidden, and you will be punished every time you get more than five red beads. People often are in the same situation. When they don't achieve individual objectives, they are not to blame. How such a situation can be avoided ? Deming gives the answer.

The western management practices are harmful from an economic and human point of view. Deming gave the demonstration several hundred times in Europe and in the United States.

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