Power 50 Ranking, 2010: 10
Company: Costco Wholesale Corp.
Key Development: Used its established private-label lines to drive sales during the recession.
What's Next: Accelerating new warehouse growth abroad without de-emphasizing U.S. expansion.
Jim Sinegal, the chief executive officer of Costco Wholesale Corp., ceded a bit of power this year — giving up the title of president — and at the same time he set up a process for a smooth management transition when he decides to retire....More