This paper argues that existing empirical models of interest rate rules are too simplistic. The hybrid Phillips curve implies that policymakers should respond to both current and expected future inflation rates, in contrast to existing models. We provide evidence that UK policymakers do this.

Central banks typically have a long-run inflation target that is modestly positive. However, the standard New Keynesian framework prescribes that zero inflation is the optimal long-run target. In this paper, we show that when the baseline New Keynesian model is extended to allow for...

This paper studies optimal real-time monetary policy when the central bank takes the exogenous volatility of the output gap and inflation as proxy of the undistinguishable uncertainty on the exogenous disturbances and the parameters of its model. The paper shows that when the exogenous...

The “sub-prime” crisis, which led to major turbulence in global financial markets beginning in mid-2007, has posed major challenges for monetary policymakers. We analyse the impact on monetary policy of the widening differential between policy rates and the 3-month Libor rate, the benchmark...

How monetary policy should be set optimally when the structure of the economy exhibits inflation persistence is an important question for policy makers. This paper provides an overview of the implications of inflation persistence for the design of monetary policy.

In recent years, the worldwide inflation rate appears to be converging to a low stable level. Moreover, the Phillips curve is flattening in many countries. These facts indicate that the output gap fluctuations associated with inflation persistence in one country influence other countries and...

Models in which firms use a rule of thumb or partial indexing in price setting are prominent in the recent monetary policy literature. The extent to which these firms adjust their prices to lagged inflation has been taken as fixed. We consider the implications of firms choosing the optimal...

Models in which firms use rules of thumb or partial indexing in their price setting have become prominent in the recent monetary policy literature. The extent to which these firms adjust their prices to lagged inflation has been taken as fixed. We consider the implications of firms choosing the...

Models in which firms use a rule of thumb or partial indexing in price setting are prominent in the recent monetary policy literature. The extent to which these firms adjust their prices to lagged inflation has been taken as fixed. We consider the implications of firms choosing the optimal...

We analyze the microfoundations of the Phillips curve, a key relationship in general macroeconomics and models of monetary policy in particular. The form in current widespread use includes both forward looking expected inflation and lagged inflation. The presence of lagged inflation is necessary...