Japan’s exports expanded by 8% on a year earlier in April, lagging the 15% growth in imports for a second month. That likely reflects a drop in the yen vs. the dollar that has made exports more expensive. U.S.-bound exports only increased 3%, while the Japanese surplus with the U.S. is 8% below its peak. Higher auto-parts shipments may mean more U.S.-based car production. The trade balance move will help Japanese trade negotiations with the United States. Commerce Secretary Wilbur Ross has stated the U.S. wants a bilateral trade agreement, but at the pace at which Japan wants to proceed....