Japanese Housewives Sweat in Secret as Markets Reel – New York Times 
"Until the credit crisis, which began with troubles in the American mortgage market, the value of foreign currencies traded online by private Japanese citizens, including women, averaged $9.1 billion a day almost a fifth of all foreign exchange trading worldwide during trading hours in Tokyo." That's massive.
http://www.nytimes.com/2007/09/16/business/worldbusiness/16housewives.html?em&ex=1190174400&en=654d792bc6401821&ei=5087%0A
"Until the credit crisis, which began with troubles in the American mortgage market, the value of foreign currencies traded online by private Japanese citizens, including women, averaged $9.1 billion a day almost a fifth of all foreign exchange trading worldwide during trading hours in Tokyo." That's massive.
http://www.nytimes.com/2007/09/16/business/worldbusiness/16housewives.html?em&ex=1190174400&en=654d792bc6401821&ei=5087%0A
