High uncertainty is an inherent implication of the zero lower bound, while de ‡ation is not because of in ‡ationary pressure due to uncertainty about how debt will be stabilized.We show that policy uncertainty empirically accounts for the absence of de ‡ation in the US economy. Announcing …scal austerity is detrimental in the short run, but it preserves macroeconomic stability. On the other hand, a recession can be mitigated by abandoning …scal discipline, at the cost of increasing macroeconomic instability. The policy trade-o¤ can be resolved by committing to in ‡ating away only the portion of debt accumulated during the recession. JEL Codes: E31, E52, E62, E63, D83