David Welch:

Here are two facts that defy logic: By the end of the year, electric-car maker Tesla Inc. will have burned through more than $10 billion without ever having made 10 cents. Yet companies around the world are lining up to compete with it.
 
 Almost 50 new pure electric-car models will come to market globally between now and 2022, including vehicles from Daimler AG and Volkswagen AG. General Motors Co. raised the stakes Monday by pledging to sell 20 all-electric vehicles by 2023, including launching two new EVs in the next 18 months. Even British inventor James Dyson is getting into the game, announcing last week that he’s investing two billion pounds ($2.7 billion) to develop an electric car and the batteries to power it.
 
 The reasons for chasing Tesla are part city hall, part show business. Regulators in Beijing have laid out a plan to mandate electric vehicle production in China, while California requires carmakers to build more EVs or be forced to buy credits from rivals. At the same time, Tesla Chief Executive Elon Musk and his sleek cars have captured the imagination of Americans to the point where consumers and investors are throwing money at his Silicon Valley company.