The yen's recent appreciation comes as the world's third-largest economy has been bottoming out from its deepest postwar slump
About 85 per cent of traders are men, mostly in their 30s, 40s and 50s, according to estimates from Gaitame
The plan, if it does go ahead, may need to be revised, according to Kenichi Kurahashi, a Tokyo-based chief fund manager at Mitsubishi UFJ Kokusai Asset Management Co
'The yen's roaring higher was a sign of just how widespread concern over the health of the global economy had become'
The dollar was firm at 109.260 yen , having fallen to as low as 109.120 overnight