Price-Comparison Services Help Holiday Shoppers Get Deals | NBC Southern California

Price-Comparison Services Help Holiday Shoppers Get Deals

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    NEWSLETTERS

    Companies use algorithms to track prices in real time at multiple retailers – for everything from electronics to exercise equipment. Then advise their clients – other retailers – on whether they should drop or lower their prices. Ana Garcia reports for the NBC4 News at 5 p.m. on Dec. 19, 2012.