The first task for the Brexit negotiators is to agree on the rights of European Union citizens in Britain, and of UK citizens in the EU. In a rational world, this would be straightforward. In the real world, it will be a problem if one side or the other chooses to make it one. Roughly 3.2 million EU citizens live …

For all their national pride and natural boosterism, Chinese officials don’t seem to think much of their own companies. Regulators have sought to limit everything from high-speed trading to short-selling, arguing Chinese firms can’t yet handle the vagaries of modern financial markets. They’re particularly leery of greater transparency, for fear of what might be exposed. Only last week, the China …

I’m going to wade into the debate over how to value companies that are technology-ish. There are understandable questions about whether mattress startup Casper, home-delivered razor seller Dollar Shave Club or meal-kit company Blue Apron should be valued like their old-guard competitors (meaning cheap) or more like internet companies that are in the business of bytes rather than real-world merchandise. …