Defence date: 9 May 2012Examining Board: Professor Fabrizio Cafaggi, European University Institute, Florence (Supervisor); Professor László Bruszt, European University Institute, Florence; Professor Katharina Pistor, Columbia University, New York; Professor Marek Safjan, European Court of Justice, Luxembourg.This thesis analyzes the role of private regulation in European integration. Taking three selected sectors – payments, professionals and housing – as a testing ground, this thesis portrays the actual functioning of private regulation in the EU and looks at the mutual correlation between the process of European integration and private regulation. The study follows along the European and national lines in three countries: Germany, Poland ...