Public debts in the euro area have increased sharply due to the economic crisis, and remain at historically high levels in several countries. In a monetary union, high-debt members represent a permanent threat to financial stability, as they are subject – even if fundamentally solvent – to...

We derive the optimal fiscal policy for a government that is committed to honoring its debt but faces investors which fear a sovereign default. We assume that investors are able to learn from new evidence, as in Marcet and Sargent (1989), so that they can gradually correct their overly...

To contrast the severe global recession of 2009, governments in most advanced countries implemented expansionary fiscal policies leading to a steep increase in public debt. As economies recover, a critical choice is whether to stabilize debt at post-crisis levels, or to bring it down to...