US policy makers yesterday also announced another US$10 billion downgrade to their monthly bond purchases, now reduced to a pace of US$55 billion a month.
"We're trying to decipher her timeframe and get ahead of it," Frank Davis, director of sales and trading at LEK Securities in New York, told Reuters. "While we didn't make any drastic changes to our positions as a result of what she said, we have a tight watch on her to figure out how she'll play her hand."
In afternoon trading in New York, the Dow Jones Industrial Average rose 0.70 per cent, the Standard & Poor's 500 Index added 0.58 per cent, while the Nasdaq Composite Index gained 0.36 per cent.
Gains in shares of JPMorgan and those of Microsoft, up 3.5 per cent and 3.1 per cent respectively, helped propel the Dow higher.
"People are back focusing on signs of economic growth," Stephen Carl, principal and head equity trader at New York-based Williams Capital Group, told Bloomberg News.
In Europe, the Stoxx 600 Index edged higher to finish today's session at 327.67. Germany's DAX rose 0.2 per cent, while France's CAC 40 advanced 0.5 per cent. The UK's FTSE 100 shed 0.5 per cent.
Gold suffered a drop as the Fed's confidence in the improving US economy decreased the appeal of the safe-having investment. Gold futures for April delivery 0.8 per cent lower to close at US$1,330.50 on the Comex in New York.
"People are reassessing their reasons to hold gold," Adam Klopfenstein, a senior market strategist at Archer Financial Services in Chicago, told Bloomberg News. "Gold has removed its safe-haven hat."