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Surprise - Groupon Margins And Stock Price Crash Tim Worstall Contributor Is Google To Buy Groupon? And What's Fun If It Does Tim Worstall Contributor Beware Groupon Tim Worstall Contributor Groupon: Probably Not Sustainable Tim Worstall Contributor Here’s a very interesting little piece of economic research. Or, if you prefer, an application of the economics…

By Jacob Gershman Getty Images On the Internet, nobody knows you’re a dog, according to the famous New Yorker cartoon. But, canine or human, your opinion still matters in the courtroom. A federal district judge from Tampa earlier this month relied on an anonymous Yelp posting as key evidence in a ruling on a business dispute…