I show how to implement in a simple manner the comparison of alternative monetary policy rules in a two-country model of the new generation. These rules are: Full Price Stability, Taylor, Fixed and Managed Exchange Rates. I find, first, that the exchange rate dynamic is non-stationary unless...

Industrial countries moving from fixed to floating exchange rate regimes experience dramatic rises in the variability of the real exchange rate. This evidence, forcefully documented by Mussa (1986), is a puzzle to the extent that it is hard to reconcile with the assumption of flexible prices....

We lay out a tractable small open economy version of the canonical sticky price model, and use it as a framework to study the properties of three alternative monetary regimes: (a) optimal monetary policy, (b) a Taylor rule, and (c) an exchange rate peg. Several interesting results emerge from...

I study the macroeconomic costs (both in terms of stabilization and welfare) of the relinquishment of monetary policy independence associated with the membership of a currency area. The analysis is framed within a general equilibrium model of the world economy, composed by a large closed Union...

We document that variations in government purchases generate a rise in consumption, the real and the product wage, and a fall in the markup. This evidence is robust across alternative empirical methodologies used to identify innovations in government spending (structural VAR vs. narrative...

Government spending at the zero lower bound (ZLB) is not necessarily welfare enhancing, even when its output multiplier is large. We illustrate this point in the context of a standard New Keynesian model. In that model, when government spending provides direct utility to the household, its...