This book clarifies the position of producer organizations on the agricultural market by analyzing the competition and agricultural law of the EU and of four of its member states, and the relevant case-law of the EU and national judiciary. The possible regulatory role of producer organizations on the milk market after the planned abolition of the EU milk quota is then compared to the legal position of the Swiss milk producers that have already been producing without a public production quota as of 2009. Margarite Turhan has been working as Assistant Professor for European Law at Yeditepe University since 2010.