Why is it that inflation is persistently high in some periods and persistently low in other periods? We argue that lack of commitment in monetary policy may bear a large part of the blame. We show that, in a standard equilibrium model, absence of commitment leads to multiple equilibria, or...

Price stability is an important goal of public policy. To reach this goal, two key questions must be addressed: How can price stability be achieved? And, how much price stability is desirable? The authors review the fiscal theory of the price level, with special emphasis on its implications for...

This paper studies the quantitative properties of fiscal and monetary policy in business cycle models. In terms of fiscal policy, optimal labor tax rates are virtually constant and optimal capital income tax rates are close to zero on average. In terms of monetary policy, the Friedman rule is...

What is the best way to achieve price stability? Conventional wisdom says that a tough, independent central bank is all that is necessary. However, a new view—the fiscal theory of the price level—argues that an appropriate fiscal policy is also required, no matter how tough the central bank...