The Friedman rule states that steady-state welfare is maximized when there is deflation at the real rate of interest. Recent work by Khan et al. (2003) uses a richer model but still finds deflation optimal. In an otherwise standard new Keynesian model we show that, if households have hyperbolic...

This Paper explores the quantitative implications of an approach to monetary policy that gained prominence in the United States during the 1990s. Proponents of this approach recommend that, when inflation is moderate but still above the long-run objective, the central bank should not move...

This Paper considers monetary and exchange rate policy in Korea since the financial crisis of 1997-98. The Bank of Korea has adopted much of the apparatus of inflation targeting, with a band for target inflation and a Monetary Policy Report to the National Assembly. This regime has served the...

Inflation-targeting central banks have only imperfect knowledge about the effect of policy decisions on inflation. An important source of uncertainty is the relationship between inflation and unemployment. This Paper studies the optimal monetary policy in the presence of uncertainty about the...

Most central banks perceive a trade-off between stabilizing inflation and stabilizing the gap between output and desired output. However, the standard new Keynesian framework implies no such trade-off. In that framework, stabilizing inflation is equivalent to stabilizing the welfare-relevant...

One test of an exchange-rate peg is to ask whether the implicit inflation target of the pegging country is the same as that of the anchor country. If the inflation targets of the two countries are different, the peg's long-run credibility should be rejected. We examine the Austrian experience...

This paper introduces adaptive learning and endogenous indexation in the New-Keynesian Phillips curve and studies disinflation under inflation targeting policies. The analysis is motivated by the disinflation performance of many inflation-targeting countries, in particular the gradual Chilean...

My lessons from six years of practical policy-making include (1) being clear about and not deviating from the mandate of flexible inflation targeting (price stability and the highest sustainable employment), including keeping average inflation over a longer period on target; (2) not adding...

We examine global dynamics under infinite-horizon learning in New Keynesian models where monetary policy practices either price-level or nominal GDP targeting and compare these regimes to inflation targeting. These interest-rate rules are subject to the zero lower bound. Robustness of the three...