The Federal Reserve launched another aggressive stimulus programme on Thursday,saying it will buy $40 billion of mortgage debt per month and continue to purchase assets until the outlook for jobs improves substantially.
In a significant shift in the direction of US monetary policy,the Federal Reserve has tied its unconventional bond buying directly to economic conditions,a move that is likely to be controversial among central bank critics.
If the outlook for the labour market does not improve substantially,the committee will continue its purchase of agency mortgage-backed securities,undertake additional asset purchases,and employ its other policy tools as appropriate until such improvement is achieved in a context of price stability, the Fed said in a statement.
In an additional step that reflects just how concerned Fed officials have become about the health of the economy,policymakers said they would not likely raise rates from current rock-bottom lows until at least mid-2015. Previously,it had set such guidance at late 2014.
The decision comes in the face of widespread questions about the likely effectiveness of a further foray into unorthodox monetary policy,including from Republican presidential nominee Mitt Romney.
The latest purchases build on the $2.3 trillion in US government and housing-related debt the Federal Reserve has already bought.
The new move is even bolder than many investors had anticipated given its open-ended nature and clear links to unemployment.
US economic growth cooled in the second quarter,coming in at a tepid 1.7 per cent annual rate,and forecasters do not believe it is doing much better now.
The economy created just 96,000 jobs last month,less than needed to keep up with population growth.
While the unemployment rate edged down to 8.1 per cent it was only because so many Americans gave up on the search for work.
Global oil prices soared to four-month highs in response to the quantitative easing
The dollar hit a seven-month low against the yen and a four-month trough versus the euro
S&P 500 rose to its highest intraday level since Jan 2008,Dow Jones shot up more than 150 points the highest point since the start of the Great Recession