Bloomberg International Business Machines Corp took another step towards bringing the world of quantum computing to commercial applications — and CEO Ginni Rometty sees real results coming as soon as 2021. “We’re probably in a two- to five-year time frame that you’ll actually start to see commercial businesses doing real commercial applications,” Rometty said in an interview on Bloomberg TV. ...

President Donald Trump has said that he can declare a national emergency and order his border wall to be built. He’s wrong. The US Constitution doesn’t contain any national emergency provision that would allow the president to spend money for purposes not allocated by Congress. And it’s clearer than clear that Congress not only hasn’t authorized money for a wall ...

A slowing economy and relatively high prices have been highlighted as chief culprits behind the slump in demand for Apple Inc.’s iPhones in China. There’s a third factor that’s been overlooked: the end of easy money. Apple last week cut its quarterly revenue forecast for the first time in almost two decades, blaming weak sales in Asia’s largest economy. Cheaper ...