BENTONVILLE, Ark. -- Wal-Mart. Always.
At least that's the way it seems anytime supermarket executives talk, whether they compete directly with Wal-Mart or not.
Next year Wal-Mart Stores celebrates noteworthy anniversaries of its three food retailing formats. The first supercenter was launched in 1988 and has become a formidable force in gobbling up food dollars over a 15-year period. Sam's Club, launched in 1983, is in the process of being retooled after 20 years. And, t