The Bank of Japan left its key short-term interest rate unchanged at -0.1 percent at its June meeting, as widely expected, hours after the Federal Reserve signaled possible interest rate cuts later this year. Policymakers also kept the target for the 10-year Japanese government bond yield at around zero percent, but warned that downside risks regarding overseas economies were likely to be significant so that close attention should be paid to their impacts on firms’ and households’ sentiment.