Ideas worth spreading

7,852,954 views | Dan Ariely • EG 2008

Daniel Ariely demande: Contrôlons-nous nos décisions?

Spécialiste d'Economie Comportementale, Dan Ariely, l'auteur de "Prévisiblement Irrationnel", utilise de classiques illusions d'optique et ses propres surprenantes (et parfois choquantes) conclusions de recherche pour démontrer que nous ne sommes pas aussi rationnels que nous le pensons lorsque nous prenons des décisions.

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This video is a TED "Best of the Web" pick, featuring a remarkable idea available on the internet from an independent creator. This idea didn’t come from TED, but TED is thrilled to spread it. TED's editors chose to feature it for you.

Spécialiste d'Economie Comportementale, Dan Ariely, l'auteur de "Prévisiblement Irrationnel", utilise de classiques illusions d'optique et ses propres surprenantes (et parfois choquantes) conclusions de recherche pour démontrer que nous ne sommes pas aussi rationnels que nous le pensons lorsque nous prenons des décisions.

This video is a TED "Best of the Web" pick, featuring a remarkable idea available on the internet from an independent creator. This idea didn’t come from TED, but TED is thrilled to spread it. TED's editors chose to feature it for you.

About the speaker

Behavioral economist

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Dan Ariely questions the forces that influence human behavior and the irrational ways we often behave.

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About Best of the Web

Best of the Web, like the rest of TED.com, involves compelling people and ideas. But unlike TED Talks, these videos don't come from TED or our partner conferences: they're curated from around the internet, drawing on freely available videos from creators with an idea worth spreading.