China and Japan move to trade each other's currencies directly, without using the U.S. dollar to set the exchange rate. The change is a new step toward a world where the dollar is not last word in global currencies.
The U.S. believes China is dumping solar panels at below-market prices in America and has hit back with a penalty of 31 percent. That tariff is surprisingly steep and many in China are not reacting well. Could they backfire?