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Self-made billionaires: How they started

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What is it that makes these individuals rare? Is it their strong conviction, ability to take risks, or self-efficacy? Here’s a look at the people who made it on their own to the billionaires’ list. All figures in U.S. dollars, as of August 2016.

© REX/Kristoffer Tripplaar/ Sipa U; REX/Isopix ; REX/MediaPunch; © Louie Psihoyos/Science Faction
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