Tom Metcalf and Jack Witzig report in Bloomberg:
Amazon.com Inc. founder Jeff Bezos added the most in 2017, a $34.2 billion gain that knocked Microsoft Corp. co-founder Bill Gates out of his spot as the world’s richest person. Facebook co-founder Mark Zuckerberg had the fourth-largest U.S. dollar increase on the index, adding $22.6 billion. Tech startup billionaires were identified, including the CEO of Roku Inc. and the two co-founders of Wayfair Inc. Investor euphoria created bitcoin billionaires, including Tyler and Cameron Winkelvoss.
























