Sooner or later, the ECB must accept that monetary financing in support of deficit spending is a necessity not just for mitigating the coronavirus crisis, but also for averting a downward deflationary cycle that could pull the eurozone apart.

The process of monetary integration in Europe began amid widespread skepticism among economists about the project. But today the success of the euro has prompted a reconsideration of whether monetary unions should be implemented elsewhere. This CESifo volume assesses contemporary theoretical and...