12/12/2012 09:06 am ET Updated Feb 11, 2013

Uber Car Service Faces Regulatory Hurdles

It's hard to think of a market more mired in the mid-20th century than urban taxis and car services. In a world of digital markets, buyers and sellers of the service interact in the most analog way imaginable. Drivers cruise the streets, advertising their availability, and buyers stand and try to hail them, competing against the elements and one another. It seems to be a classic case where a simple app could make the whole thing run more efficiently.

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