To firms planning to buy other companies with borrowed money in the new year: Please take a moment to reconsider and learn from those who have gone before you. It’s true that companies flop all the time. But those that borrow gobs of money have a narrower margin for error. And companies in some sectors popular for leveraged buyouts, …

  How much is a child’s future success determined by innate intelligence? Economist James Heckman says it’s not what people think. He likes to ask educated non-scientists — especially politicians and policy makers — how much of the difference between people’s incomes can be tied to IQ. Most guess around 25 percent, even 50 percent, he says. But the data …

  Bloomberg When you think of Singapore Airlines Ltd., visions appear of cushy premium cabins and bespoke leather seats. It’s all that, yes. But the luxury carrier is working hard to diversify with budget airlines under its corporate banner. It owns low-cost carrier Scoot; 49 percent of Vistara, a joint venture in India with Tata Sons Ltd.; and NokScoot, a …