Backgrounder

  • World's Billionaires 2011
  • This year's list broke records in size (1,210 billionaires) and total net worth ($4.5 trillion). China doubled its number of 10-figure fortunes, and Moscow now has more billionaires than any other city. Mexico's Carlos Slim widened his lead at No. 1.
Gates, Buffett lobby the rich for donation pledgesMicrosoft Corp. co-founder Bill Gates and billionaire investor Warren Buffett are launching a campaign to get other American billionaires to give at least half their wealth to charity.

Carlos Slim tops Forbes list of billionaires for second year

Carlos Slim remained the world’s richest person for a second year with estimated assets of $74 billion, according to Forbes magazine’s annual global ranking of billionaires.