A Wal-Mart 2-for-1

Since 1992, Wal-Mart Stores Inc. of Bentonville has become America’s leading grocer and 13,500 grocery stores, or 17 percent of the total, have closed, according to Retail Forward, a consulting firm quoted by Forbes magazine in November.r

For every new Wal-Mart Supercenter that opens, two rival supermarkets will close, Forbes said.r