The "real" cost of capital is rising as the slump deepens. This is textbook debt deflation. It was not supposed to happen. The Bernanke doctrine assumes that the Fed can bring down the whole structure of interest costs, first by slashing the Fed Funds rate to zero, and then by making a "credible threat" to buy Treasuries outright with printed money.
Mr Bernanke has been repeating this threat since early December. But talk is cheap. As the Fed hesitates, real yields climb ever higher. Plainly, the markets do not regard Fed rhetoric as "credible" at all.
Who can blame bond vigilantes for going on strike? Nobody wants to be left holding the bag if and when the global monetary blitz succeeds in stoking inflation. Governments are borrowing frantically to fund their bail-outs and cover a collapse in tax revenue. The US Treasury alone needs to raise $2 trillion in 2009.