The difficulties for emerging markets have entered a new phase. What were once clearly country-specific crises, well contained within their borders, are bleeding across the world. To stem the slide in its currency Argentina raised its key rate to a whopping 60 percent last week, but the peso was still 30 percent weaker. Though Turkey is no closer to solving ...

Donald Trump is the most powerful person in the world, and he has a loud megaphone. One word or tweet from him can move markets, or galvanize rage against a person or institution. Yet Amazon.com Inc. stayed quiet when the US president said the company crushes small businesses, may be violating anti-monopoly laws, dodges taxes and takes advantage of the ...

The next round of US tariffs on Chinese imports — $200 billion worth — could come as soon as this week, after talks to avert them ended without resolution. China is set to retaliate promptly with duties on nearly everything it imports from the United States. Even as he signaled an initial deal with Mexico, President Donald Trump declared it ...