LAN-ZZV476-20060302-17254-ZZV 7 IN MEXICAN FOOD RETAIL, WALMART ENTRY LED OTHERS TO IMPROVE SUPPLY CHAIN EFFICIENCY *Share of total sales distributed through centers not updated Source:Annual reports Wal-Mart* Comercial Mexicana Gigante Soriana Number of distribution centers in 2001 Share of total sales distributed through centers (2001 vs.
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