Crises are a major driving force behind cooperation in the European Union. This holds also for monetary and fiscal policy. During severe crises, cooperation has been enlarged and intensified. The recent covid-19 pandemic is a clear example of this pattern. The pandemic has had huge impact on the...

This paper presents a model of nations where agents vote on the optimal level of public pending. Larger nations benefit from increasing returns in the provision of public goods, but bear the costs of greater cultural heterogeneity. This tradeoff induces agents' preferences over different...