Groupon's Possible Effect on Bad Yelp Reviews

Groupon’s Possible Effect on Bad Yelp Reviews. In a study out last week, John Byers and Georgia Zervas, of Boston University, and Michael Mitzenmacher, of Harvard, take an economic look at daily deal sites then crunch the data against data from Facebook and Yelp users. Turns out that, in this case, quantity of customer does not necessarily equal quality of Yelp review. []