This regional breakdown is what the EU uses to distribute its “catch-up funds,” which is used to fund a subset of a country’s projects in transportation infrastructure, schools, and hospitals, as well as development of small firms, investments in a low-carbon economy, environmental projects, and training and education. The least developed regions get a bigger share of the 50 billion euros distributed annually and, as a result, have to cofund less of total project costs. More developed regions receive less money and pay more toward project costs. Yet how does the EU decide whether a region is less developed? Where are the lines drawn?