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2. Irene Rosenfeld
Chairman and CEO
Kraft Foods (KFT)
2009 rank: 2
Age: 57

Rosenfeld's battle for candy maker Cadbury rankled Kraft's largest shareholder, Warren Buffett's Berkshire Hathaway, but analysts say the $19 billion purchase is sweet: It pushes Kraft to $48 billion in revenue and gives the food giant a bigger foothold in emerging markets like India.

NEXT: Patricia Woertz
Last updated September 30 2010: 2:47 PM ET
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