China is the leading country for entrepreneurs to create wealth, says a global survey of billionaires.Read more
Forbes has published its annual list of the wealthiest 400 Americans and the usual suspects topped the list.
Amazon founder Jeff Bezos snagged the number one spot with an estimated net worth of about $160bn - no surprise since he also ranked first on the magazine's list of global billionaires published earlier this year.
Mr Bezos was followed by Bill Gates, Warren Buffett and Mark Zuckerberg.
And US President Donald Trump's ranking continued to slip. He fell to number 259 from 248 last year - though his estimated net worth held steady at $3.1bn.
Self-made billionaire Kiran Mazumdar Shaw shares her secrets for succeeding in a man's world.