Brexit Casts Doubt on the Wisdom of Crowds

Research suggests that smaller groups can make better decisions, particularly on complex issues.

Don't ask them tough questions.

Photographer: Rob Stothard

During the next couple months, the various candidates to replace U.K. Prime Minister David Cameron will debate what to do now that voters have decided to leave the European Union. They should keep in mind that doing exactly what the voters said might not be the wisest -- or even the most democratic -- approach.

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