Wal-Mart Stores, Inc. will sell only concentrated products in the liquid laundry detergent category in its U.S. Wal-Mart Stores and Sam’s Clubs. Lee Scott, president and CEO of Wal-Mart Stores, Inc., recently made the commitment at the Clinton Global Initiative. Wal-Mart expects to sell only concentrated detergent in all of its U.S. stores by early May 2008—more than 800 million units over the next three years. The transition began in the Southern region in October, extending to the North an...