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...