Alternative Monetary Policy Commitments and the Yield Curve*

We present a simple model to characterise central bank forward guidance, large-scale asset purchases and yield curve control. Endogenous yield curve reactions to policy shocks are a key determinant of monetary conditions and can support or offset policy intentions. Alternative monetary policy tools allow the central bank to signal central bank private information to investors when the policy rate is at the effective lower bound, shaping yield curve reactions. Commitments to these tools offer policy certainty but can become time-inconsistent if the economy recovers sooner than expected. If commitments become time-inconsistent, endogenous yield curve tightening can offset excess stimulus. The strength of this offset, and the optimality of monetary conditions, improves with the precision of investor inferences of central bank private information.