(LEAD) Seoul shares edge down on foreign selling 21.01.2016 10:43 Yonhap News Agency (en) (ATTN: ADDS bond yields at bottom) SEOUL, Jan. 21 (Yonhap) -- South Korean stocks closed slightly lower Thursday as overseas investors continued their selling spree. The local currency closed a tad higher against the U.S. dollar. The benchmark Kor
