Why did bonds fall when fed bought during QE?

1) That is "partially true" as long as the credit quality does not deteriorate......which can bring about an enormous "deflation" of value/price.
2) You "economists", who are obsessed with inflation, and explain everything via "supply and demand", in hindsight, are amusing and annoying.

 

If you think of Bernanke as a quant, QE and printing money makes alot more sense.