A two area dynamic stochastic general equilibrium model is employed to investigate the welfare implications of losing monetary independence. Two policy regimes are compared: (i) in one area there is a common currency, while in the other area countries still retain their autonomous monetary...

This paper revisits the question of the appropriate domain of a currency area using a New-Keynesian open economy model in which the world is split in two areas, each framed as a continuum of small open regions. We show that the adoption of a common currency like the euro can be beneficial for...

We consider monetary fiscal policy interactions in a monetary union. If monetary and fiscal authorities have different ideal output and inflation targets, the Nash equilibrium output or inflation or both are beyond the ideal points of all authorities. Leadership of either authority is better....

We study optimal fiscal policy in a monetary union where monetary policy is decided by an independent central bank. We consider a two-country model with trade in goods and assets, augmented with sticky prices, labor income taxes and stochastic government consumption. It is optimal to finance a...

We consider the interaction between the monetary policy of a common central bank in a monetary union, and the separate fiscal policies of the member countries. We construct a model of the Barro-Gordon type extended to many countries and countercyclical fiscal stabilization policies. Each...