Kirk Kerkorian

President/CEO, Tracinda
AGE: 91

The billionaire spends much of his time in his Beverly Hills mansion, where he plays tennis and plots his next move. Nothing turns on the onetime boxer more than a lightning upper-cut to management. After General Motors rebuffed a proposed merger with Nissan-Renault , Kerkorian sold his shares (at a profit) and bought a 5.5% stake in Ford Motor . He says he is backing Ford's leaders — for now.

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