In this March 11, 2008 file photo, Danielle Pettiford of Williamstown, N.J. gets some help with the television that she bought at a Wal Mart superstore in Turnersville, N.J. Investors have found plenty of reasons to be optimistic about Wal-Mart since last fall, as the company found the right mix of merchandise and marketing to complement its refocus on low prices at a time when Americans are seeking less expensive options. (AP Photo/Mel Evans, file)

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