Recent years have seen the rise of EU State aid law as a crucial component of the European economic constitution. To date, however, the literature has neglected the contribution of this area of EU law to the internal market. This book fills the gap in understanding the economic constitution by exploring the significance of State aid law in addressing questions that go to the core of the internal market project. It does so by examining the case law relating to three different activities that Member States engage in: market participation, market regulation, and funding for Services of General...