Divergent macro-economic developments within a currency area can lead to undesired distortions. That is why in the Eurozone much attention was drawn to the homogeneity of the currency area. However, at the beginning the Eurozone seemed to be too heterogeneous for a common currency. So many hopes...

A group of agents wants to reform the status quo if and only if this is Pareto improving. Agents have private information and may have common or private objectives, which creates a tension between information aggregation and minority protection. We analyze a simple voting system - majority rule...