How should public debt be managed when uncertainty about the business cycle is widespread and debt levels are high, as in the aftermath of the last financial crisis? This paper analyzes optimal fiscal policy with ambiguity aversion and endogenous government spending. We show that, without...

One of the main functions of public debt is to smooth taxes and spending over time. In the Covid crisis, the Maastricht deficit restrictions were temporarily suspended to allow for large temporary deficits. As recovery sets in, countries are confronted with the task of consolidating the Covid...