Oct 102011
Last month, a study conducted by Boston University researchers John Byers and Georgia Zervas and Harvard University researcher Michael Mitzenmacher found that while Groupon and LivingSocial deals can increase the number Yelp reviews, they can also reduce Yelp scores by ten percent. yelp reviews that mentioned the words “Groupon” or “coupon” lowered star rating by ten percent. Reviews that mentioned both words showed a 20 percent drop.
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