William T. Ross

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Daily deal coupons have gained a prominent foothold on the web. The earliest and largest player is Groupon. Originally, Groupon deals were a mix of deals with a minimum requirement (<i>MR</i>) of coupon sales before a deal became effective and of deals without a minimum requirement (<i>NMR</i>). Eventually, Groupon stopped using <i>MR</i> deals. For Groupon(More)
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