Ideas worth spreading

8,040,587 views | Dan Ariely • EG 2008

Dan Ariely pergunta: temos controle sobre nossas decisões?

O economista comportamental Dan Ariely, autor de "Predictably Irrational", usa ilusões visuais clássicas e os resultados contraintuitivos (e certas vezes chocantes) de sua pesquisa para mostrar como não somos tão racionais como acreditamos ser quando tomamos decisões.

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.

O economista comportamental Dan Ariely, autor de "Predictably Irrational", usa ilusões visuais clássicas e os resultados contraintuitivos (e certas vezes chocantes) de sua pesquisa para mostrar como não somos tão racionais como acreditamos ser quando tomamos decisões.

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.