Bloomberg Markets' inaugural list of the world's richest people, in the December 2012 issue, showcases the billionaires who pull the levers on the global economy. Together, the net worth of the top 20 individuals totals $713.4 billion.
20. Alwaleed bin Talal Al Saud
Net worth: $22.9 billion
YTD change: + $5.6 billion / 32.0%
Source of wealth: Kingdom Holding
Industry: Diversified
Citizenship: Saudi Arabia
Age: 57
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