Grocery coupons and technology haven't mixed well so far. Some stores flat-out reject Internet coupons because of fraud. It's too easy for counterfeiters to take an online coupon and change the dollar amounts, say grocers.
But coupons over cell phone are harder to forge, and five package-goods manufacturers are working with Kroger to test the idea. The system sounds convoluted and time-consuming, but it's a start to figuring out how to bring the age-old art of coupon clipping into the wireless world.
"Mobile couponing is the future," an IAG Research analyst told AdAge. Shares of the five manufacturers -- Procter & Gamble, Clorox, Del Monte, General Mills and Kimberly Clark -- haven't moved much today in response to the news.
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