Wall Street worries about PayPal's real-world expansion

By Alistair Barr SAN FRANCISCO (Reuters) - Wall Street is having second thoughts about following PayPal from its online roots into the physical world. PayPal, a leader online, launched a push in 2011 to become a payment option in brick-and-mortar stores. The move increases PayPal's potential market by a factor of at least 10, and has been a big driver of the shares of owner eBay Inc, which surged 68 percent in 2012. ...

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