In this book the authors tackle the concept of ‘quality of government’ (QoG) both conceptually and empirically and apply their focus to EU countries and regions. In a pioneering empirical effort, they map out regional QoG for the first time for 172 NUTS 1 and 2 regions throughout 18 countries in the EU, and provide a detailed methodology. They follow up the quantitative assessment with three case studies demonstrating the wide variation of QoG found within the countries of Italy, Belgium and Romania. The book concludes with important lessons and ideas for future research.