The fortunes of the world’s 500-richest people dropped by $68.5 billion Friday as equity markets swooned with investor worries about the pace of interest rate hikes in the U.S. Warren Buffett led the declines, shedding $3.3 billion to end the day at No. 3 on the Bloomberg Billionaires Index with $90.1 billion. Jeff Bezos, the world’s richest person with $119.6 […]