Billionaires Worth $1.9 Trillion Seek 2013 Global Advantage

Billionaires Worth $1.9 Trillion Seek 2013 Global Advantage

Daniel Acker/Bloomberg

Warren Buffett, chairman of Berkshire Hathaway Inc., right, and Bill Gates, chairman and co-founder of Microsoft Corp., participate in a newspaper toss event at the Berkshire Hathaway annual shareholders meeting in Omaha, Nebraska, on May 5, 2012.