With twelve new members the decision making in the European Union via intergovernmental cooperation will become ineffective. In order to avoid a Stagno-Europe the EU has a choice: Either it looks for the very essentials in the common institutional frame or the member states agree in ceding...

We examine real business cycle convergence for 41 euro area regions and 48 US states. Results obtained by a panel model with spatial correlation indicate that the relevance of common business cycle factors is rather stable over the past two decades in the euro area and the US. Ongoing business...