Policymakers often use the output gap, a noisy signal of economic activity, as a guide for setting monetary policy. Noise in the data argues for policy caution. At the same time, the zero bound on nominal interest rates constrains the central bank's ability to stimulate the economy during...

We analyze fiscal rules within a Monetary Union in the presence of (i) asymmetric information on member states' potential output and (ii) bail-out among member states. The first-best deficit is contingent on the cycle, that is, on member states' output gap. In the presence of asymmetric...

This paper studies optimal robust monetary policy when the central bank imperfectly observes potential output and has Knightian uncertainty about the intertemporal elasticity of substitution and the slope of the Phillips curve. The literature on optimal robust monetary policy has focused on...

We exploit data on historical revisions to real-time estimates of the output gap to examine the implications of measurement error for the design of monetary policy, using the Federal Reserve's model of the U.S. economy, FRB/US. Measurement error brings about a substantial deterioration in...

We analyze fiscal rules within a Monetary Union in the presence of (i) asymmetric information about member states' potential output and, therefore, output gap and (ii) bail-out among member states. In our framework, bail-out lowers the scope for signalling (discrimination) by member states...