Just a few years ago, many were proclaiming the decline of behavioural economics. In 2009, the well-known game theorist David Levine delivered a lecture called “Is Behavioural Economics Doomed?,” in which he casts doubt on some prominent behavioural theories. In a few fields, such as finance, behavioural ideas have gone mainstream; in others, like game theory, interest is slowly …

  Ebay Inc. has managed to right the ship. Now it’s time to get sailing.Shares in the e-commerce company rose 9 percent in after-hours trading as investors cheered a fourth-consecutive quarter of sales increases. Maintaining a full year of gains helped quiet concerns that without PayPal Holdings Inc., the subsidiary it split from in 2015, eBay would be left for …

  As UK Prime Minister Theresa May tries to show the world that Brexit won’t be a disaster, it’s useful to consider what the UK can actually offer the world once it’s deprived of its European Union crutches. Perhaps its eventual role is to be the world’s quirky creative hub: That core competence won’t go away with Brexit, and it …