Market Integration and the Development of European Competition Policy to meet new Demands: A study of the Control of Oligopolistic Markets and the Concept of a Collective Dominant Position under Artic - Legal Issues of Economic Integration View Market Integration and the Development of European Competition Policy to meet new Demands: A study of the Control of Oligopolistic Markets and the Concept of a Collective Dominant Position under Artic by - Legal Issues of Economic Integration Market Integration and the Development of European Competition Policy to meet new Demands: A study of the Control of Oligopolistic Markets and the Concept of a Collective Dominant Position under Artic 21 2 Legal Issues of Economic Integration