TOKYO, Aug. 20 (Xinhua) -- Tokyo stocks ended higher on Tuesday, with the Nikkei index briefly gaining over 2 percent, as a weakening yen prompted buybacks after a fall the previous day.
Japan's benchmark Nikkei stock index, the 225-issue Nikkei Stock Average, ended up by 674.30 points, or 1.80 percent, from Monday at 38,062.92.
The broader Topix index, meanwhile, finished 29.40 points, or 1.11 percent, h
