$99B is what the world's richest man in 2017 is worth
Three out of the five richest people in the world are leaders in the technology industry.
Still, they each depend upon good old manufacturing to get their technology products to consumers.
Amazon founder and CEO Jeff Bezos will end 2017 as the world's richest person, probably with a net worth of $99 billion. That makes him around $33bn richer than he was last year.
Since the valuation is based on Amazon's share price, the number is likely to change, and stock prices can go down as well as up. However, he's now comfortably ahead of Microsoft's Bill Gates ($91.8bn) and his best buddy Warren Buffett ($85.3bn), from Berkshire Hathaway.
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