Global shares struggle, commodities down as Fed disappoints

SINGAPORE (Reuters) - Asian stocks struggled and commodities fell broadly on Thursday after the Federal Reserve ramped up monetary stimulus by expanding "Operation Twist", but disappointed some investors who had been hoping for more aggressive measures. The U.S. central bank, as expected, extended its program of selling short-term securities and buying longer-dated ones, a move aimed at driving down borrowing costs, but did not signal a third round of quantitative easing. MSCI's broadest index of Asia Pacific shares outside Japan edged down around 0. ...