, Columnist
Car-Hailing Deals and Stress Tests
Also mergers, Moomins, disdain, Theranos, buybacks and bill market liquidity.
Uber Didi.
How many car-hailing companies should there be? Network effects are pretty useful -- it is such a pain to have two apps on your phone -- but on the other hand competition is also nice. For users. Not so much for companies. Uber and Didi Chuxing have decided to forgo it in China:
