How should policymakers respond to uncertainty shocks? To analyze the macroeconomic effects of uncertainty shocks associated with various conventional structural shocks, we develop a New Keynesian model with borrowing constraints and time-varying volatility, which features a...

How should policymakers respond to uncertainty shocks? To analyze the macroeconomic effects of uncertainty shocks associated with various conventional structural shocks, we develop a New Keynesian model with financial frictions and time-varying volatility, which features a...

We examine monetary and fiscal interactions in a monetary union model with uncertainty due to imperfect central bank transparency. It is first shown that monetary uncertainty discourages excessive taxation and may thus reduce average inflation and output distortions. However, as countries enter...

The argument that policy risk, i.e., uncertainty about monetary and fiscal policy, has been holding back the economic recovery in the U.S. during the Great Recession has a large popular appeal. We analyze the role of policy risk in explaining business cycle fluctuations by using an estimated New...