How Keynes Would Handle This Slow Recovery

In theory, Keynesian stabilization policy should “shave the peaks and fill the valleys.” That is, when the economy falls into a recession the government should use deficit spending to lift the economy back towards the full employment level. It should then pay for the policy – increase revenues or reduce spending – during boom periods when the economy is overheated and needs to be slowed down. But what if, like now, there is no boom following the bust? How should we pay for the programs that were put into place during the recession in that case?