Inequality within member states has become a much debated and researched issue over the last decade (see OECD here and here). Reducing the inequality between member states (i.e. convergence) is a target the European Union (EU) has set itself in its treaties and monitors through its cohesion reports.
But what about the EU as a whole? If we consider the EU as a single economy, society and polity in the making, how large is the inequality in this Union and how did it change over time? There is far less analysis looking into EU-wide inequality. But some studies exist such as a recent Eurofound study on income inequalities in Europe, which provides an overview over other studies as well.