Modern central bankers are the risk managers of the financial system. They take actions based not only on point forecasts for growth and inflation, but based on the entire distribution of possible macroeconomic outcomes. In numerous instances monetary policymakers have acted in ways designed to...

The design of rules for central bank policy has been a subject of increasing interest to many monetary economists. The purpose of this essay is first to present an analytical structure in which a policymaker is presumed to formulate a rule based on the solution to an optimal control problem, and...

As central bankers intensify their focus on inflation as the primary goal of monetary policy, it becomes increasingly important to have accurate and reliable measures of changes in the aggregate price level. Measuring inflation is surprisingly difficult, involving two types of problems. Commonly...

This paper discusses how optimal monetary policy is affected by differences in the combination of shocks an economy experiences and the rigidities it exhibits. Without both nominal rigidities and economic shocks, monetary policy would be irrelevant. Recognizing this, policymakers increasingly...

Many advanced economies are heading into an era of fiscal stress: populations are aging and governments have made substantially more promises of old-age benefits than they have made provisions to finance. This paper models the era of fiscal stress as stemming from relentlessly growing promised...

Monetary policy decisions tend to be based on systematic analysis of alternative policy choices and their associated macroeconomic impacts: this is science. Fiscal policy choices, in contrast, spring from unsystematic speculation, grounded more in politics than economics: this is alchemy. In...

We use a rational expectations framework to assess the implications of rising debt in an environment with a "fiscal limit." The fiscal limit is defined as the point where the government no longer has the ability to finance higher debt levels by increasing taxes, so either an adjustment to fiscal...

Increases in government spending trigger substitution effects--both inter- and intra-temporal--and a wealth effect. The ultimate impacts on the economy hinge on current and expected monetary and fiscal policy behavior. Studies that impose active monetary policy and passive fiscal policy...

This paper makes changes in monetary policy rules (or regimes) endogenous. Changes are triggered when certain endogenous variables cross specified thresholds. Rational expectations equilibria are examined in three models of threshold switching to illustrate that (i) expectations formation...

Over the past twenty years, macroeconomic performance has improved in industrialized and developing countries alike. In a broad cross-section of countries inflation volatility has fallen markedly while output variability has either fallen or risen only slightly. This increased stability can be...