A sequence of crises and emergency interest rate cuts has moved global interest rates towards zero and government debt to historical records. We discuss the available options to exit from unconventional monetary policies and unsustainable government debt. First, we shed light on the probability...

We examine global dynamics under infinite-horizon learning in New Keynesian models where the interest-rate rule is subject to the zero lower bound. The intended steady state is locally but not globally stable. Unstable deflationary paths emerge after large pessimistic shocks to expectations. For...