SMARTPHONE-WIELDING SHOPPERS HAVE been scanning bar codes of products in stores to capture pricing and other intelligence. Now they are increasingly scanning another code on packaging — quick response (QR) codes. The latest example of a CPG supplier displaying QR codes on products is Sun-Maid, Kingsburg, Calif., which last month started putting the two-dimensional bar codes on Sun-Maid raisin six-packs, as well as 24-ounce Sun-Maid raisin canisters. But instead of directing shoppers to ...

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