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  • Title
    EVP and COO, Wal-Mart U.S.
  • Company
    Wal-Mart Stores
  • Age
    43
  • Last Year's Rank
    21

Ruiz helped drive a 3.9% increase in revenue to $274.5 billion in the Wal-Mart U.S. division in fiscal 2013. She produced higher average sales per customer, a jump in traffic, and store growth. The former HR executive, who made the switch to operations last year, saw operating income grow faster than sales in her business.