Wal-Mart, Target and Costco have so far felt less pain from Internet competition than many brick-and-mortar retailers. One reason is that middle- and lower-income groups that shop at discount retailers buy fresh and packaged food products that aren't sold online — yet.
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Wal-Mart (WMT), Target (TGT) Turn To Private Label Brands To Battle Online Retailers - Investors.com:
