> The battle is far from over. “Each ride-sharing market is sort of independently contestable city by city,” said Arun Sundararajan, a professor at New York Uni

> The battle is far from over. “Each ride-sharing market is sort of independently contestable city by city,” said Arun Sundararajan, a professor at New York University and author of the book The Sharing Economy. Amazing to see so many of Uber's core business theses refuted one after another. This is really the big one - that the one company that raises enough land-grab money will emerge as the undisputed winner of the reinvention of the taxi industry. It's truly something to see this notion disputed. It is like a petri dish of the new economy.