Let me get some really basic facts straight about QE.
If the Fed credibly promises to keep rates at 0% for the next 5 years and there is an absolute guarantee that this promise will be upheld, 5 year rates converge on zero*. This is basic logic, because it means that people can arbitrage the short term rate to the long term rate for those 5 years without having a risk of the short term rate rising (after all we're talking about an absolute guarantee here).
The qualification here is of course that there are no absolute guarantees. So instead the Fed can buy down the long term rate so as to force it down, the pretense being that this is somehow a more "final" move that can not just be reneged upon.
But where on earth does this idea come from, that it is more final than forward guidance, i.e. promising to control the short term rate a certain way at future dates? Any treasuries bought using QE can be sold at any moment. So this action is one that is just as easy to reverse as the breaking of a promise.
Does any forward guidance (policy through promises) basically swamp the effect of QE in this way? Does QE do absolutely nothing? Is it a placebo?
* I may be slightly wrong here; is it zero or JUST the 5 year term premium? In any case the idea is that short term rates would go down as far as they can go.
If the Fed credibly promises to keep rates at 0% for the next 5 years and there is an absolute guarantee that this promise will be upheld, 5 year rates converge on zero*. This is basic logic, because it means that people can arbitrage the short term rate to the long term rate for those 5 years without having a risk of the short term rate rising (after all we're talking about an absolute guarantee here).
The qualification here is of course that there are no absolute guarantees. So instead the Fed can buy down the long term rate so as to force it down, the pretense being that this is somehow a more "final" move that can not just be reneged upon.
But where on earth does this idea come from, that it is more final than forward guidance, i.e. promising to control the short term rate a certain way at future dates? Any treasuries bought using QE can be sold at any moment. So this action is one that is just as easy to reverse as the breaking of a promise.
Does any forward guidance (policy through promises) basically swamp the effect of QE in this way? Does QE do absolutely nothing? Is it a placebo?
* I may be slightly wrong here; is it zero or JUST the 5 year term premium? In any case the idea is that short term rates would go down as far as they can go.
Comment