This paper examines the role of a policymaker in macroeconomic outcomes. To determine the possible trade-offs posed by various policy targets, we link a well-known aggregate supply function with a policy rule. In our model we determine the conditions and explore the possibility under which a...

The inflation targeting policy, which is adopted in a lot of countries in recent years, has been introduced with a band target in most countries. However, in the many theoretical analysis, the target of the inflation rate is assumed to be a point, and the studies that have treated the following...

Under a conventional policy rule, a central bank adjusts its policy rate linearly according to the gap between inflation and its target, and the gap between output and its potential. Under the opportunistic approach to disinflation a central bank controls inflation aggressively when inflation is...

We analyse the stability of countries within a monetary union in the face of asymmetric shocks, using a simple but widely applicable model. We show that members of the union may be subject to severe cycles following asymmetric shocks if there is a significant backward looking element in...

In this paper we derive optimal monetary targeting rules under various assumptions about fiscal behavior. In contrast to the existing literature we use a linear-quadratic approach and allow for dynamic games between the two policy authorities. It is shown that optimal monetary behavior is...

In expectations-driven liquidity traps, a higher inflation target is associated with lower inflation and consumption. As a result, introducing the possibility of expectations-driven liquidity traps to an otherwise standard model lowers the optimal inflation target. Using a calibrated New...

In order to explain the joint fluctuations of output, inflation and the labor market, this paper first develops a general equilibrium model that integrates a theory of equilibrium unemployment into a monetary model with nominal price rigidities. Then, it estimates a set of structural parameters...

We estimate a New-Keynesian macro model accommodating regime-switching behavior in monetary policy and in macro shocks. Key to our estimation strategy is the use of survey - based expectations for inflation and output. We identify accommodating monetary policy before 1980, with activist monetary...

Under aggregate technology shocks, both aggregate inputs and sectorial inputs decline initially and then rise permanently. However, under sector-specific technology shocks, sectorial inputs decline permanently. In addition, sectorial output is very responsive to aggregate technology shocks but...

The speed of inflation adjustment to aggregate technology shocks is substantially larger than to monetary policy shocks. Prices adjust very quickly to technology shocks, while they only respond sluggishly to monetary policy shocks. This evidence is hard to reconcile with existing models of...