The Bank of Japan kept monetary policy steady on Friday but tempered its optimism that robust exports and factory output will underpin growth, a nod to heightened overseas risks that threaten to derail a fragile economic recovery. Factories across the globe slammed on the brakes last month as demand was hit by the U.S.-China trade war, slowing global growth and political uncertainty in Europe ahead of Britain’s departure from the European Union. At a two-day rate review ending on Friday, the BOJ maintained a pledge to guide short-term interest rates at minus 0.1 percent and 10-year government bond yields around zero ... (full story)