The euro was adopted as legal tender, albeit in a virtual form, by 11 countries of the European Union on January 1, 1999, with the intention that notes and coins denominated in euros would be introduced and the national currencies would be phased out during the first six months of that year and...

In a monetary union, national fiscal deficits are of limited help to counteract deep recessions; union-wide support is needed. A common euro-area budget (1) should provide a temporary but significant transfer of resources in case of large regional shocks, (2) would be an instrument to counteract...