"Quantitative easing" doesn't work, never did, never will. It's basically lingo for flooding the market with cash, hoping people spend it. Except for the small little detail that it's not prescribed under any conditions where people aren't minded to save and pay down debt instead.
The futility of such a policy (and the Fed is currently demonstrating it live action for you right here in the USA) is shown in the M1 money multiplier. M1 is a measure of money supply; M1 is defined as hard currency + savings/checking deposits. The M1 multiplier is how fast the money is circulating through the system; if people are spending it rises, if they save or pay debt it drops. As you can see in the following chart, the implementation of "quantitative easing" destroys the multiplier and if anything causes the opposite of the intended effect:
http://research.stlouisfed.org/fred2/series/MULT?cid=25Notice the corresponding sharp spike in M1:
http://research.stlouisfed.org/fred2/series/M1?cid=25The sharp drop in the multiplier shows that no matter how much money the Fed tries to shovel into the system, nobody is going out and investing with it. It's not going to car loans or home loans or business loans or anything - it's being accumulated to absorb losses as banks pull out all the stops to try and survive.
So all this fretting about inflation under current or near term conditions is nonsense. We are experiencing deflation (the destruction of money and credit), not inflation. Credit is being destroyed at an incredible rate as defaults pile up and remaining loans get paid down.