> Who would have thought Foursquare, a local search and discovery service mobile app, could predict sales so accurately? There was a time only Wall Street analysts could do that. Looks like Foursquare successfully turned smartphone data and foot traffic stats into predictions on Chipotle sales that were right to the mark with the reported 29.7% drop! It's fascinating to see how this kind of data can change how we do predictions of earnings and profiles for companies.

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