We explore the effects of forward guidance at the zero lower bound when there is uncertainty over the lift-off date arising from: (i) the imperfect credibility of time-inconsistent forward-guidance promises; (ii) incomplete communication. We use a simple New Keynesian model to demonstrate that a...

Recent results suggesting that monetary financing is more expansionary than bond financing in standard New Keynesian models rely on a duality between policy rules for the rate of money growth and the short-term bond rate, rather than a special role for money. We incorporate two features into a...

Motivated by policies implemented by some central banks in response to the financial crisis, we use a simple New Keynesian model to study a particular form of forward guidance. We assume that the policy maker makes a state-contingent commitment to hold the policy rate at the zero lower bound...

This paper studies optimal policy in a stylised New Keynesian model that is extended to incorporate imperfect substitutability between short-term and long-term bonds. This simple modification provides a channel through which asset purchases by the policymaker can affect aggregate demand. Because...