A floating exchange rate combined with a clear inflation target can be a powerful stabilizer even if there are fluctuations in exchange rates that are unrelated to current fundamentals. Under plausible conditions, most of the stabilisation will occur through the exchange rate, and fundamental...

It is commonly asserted that inflation is a jump variable in the New Keynesian Phillips curve, and thus wage-price inertia does not imply inflation inertia. We show that this "inflation flexibility proposition" is highly misleading, relying on the assumption that real variables are exogenous. In...

A major criticism against staggered nominal contracts is that they give rise to the so called "persistency puzzle" - although they generate price inertia, they cannot account for the stylised fact of inflation persistence. It is thus commonly asserted that, in the context of the new Phillips...

We examine the sources of macroeconomic economic fluctuations by estimating a variety of medium-scale DSGE models within a unified framework that incorporates regime switching both in shock variances and in the inflation target. Our general framework includes a number of different model features...

The possibility of regime shifts in monetary policy can have important effects on rational agents' expectation formation and equilibrium dynamics. In a dynamic stochastic general equilibrium model where the monetary policy rule switches between a dovish regime that accommodates inflation and a...

Fixed transaction costs and delivery lags are important costs of international trade. These costs lead firms to import infrequently and hold substantially larger inventories of imported goods than domestic goods. Using multiple sources of data, we document these facts. We then show that a...

Correlations of inflation with the growth rate of money increase when data are averaged over longer time periods. Correlations of inflation with the growth of money also are higher when high-inflation as well as low-inflation countries are included in the analysis. We show that serial...

Economists have long emphasized the importance of expectations in determining macroeconomic outcomes Yet there has been almost no recent effort to model actual empirical expectations data; instead macroeconomists usually simply assume expectations are rational This paper shows that while...

This paper examines the long-run effects of supply shocks (such as oil shocks) on inflation in the United States. The persistence of supply shocks in U.S. inflation fell considerably during the period of Volcker's disinflation (1979-1982). My empirical results suggest that the difference between...

This paper applies GMMestimation to assess empirically the small open-economy New Keynesian Phillips Curve derived in Galí and Monacelli (2005). We obtain a testable specification where fluctuations in the terms of trade enter explicitly, thus allowing a comparison of the relevance of domestic...