This chapter analyzes the role of non-market actions (NMAs) in the competitive position of firms in the European mobile telecommunications industry. First, the bases and uses of NMAs are reviewed and classified. Second, the use of legal actions as NMAs to erode the competitive position of first-mover firms is examined. Third, the findings of an empirical study confirming the effectiveness of legal actions as competition tools in the European mobile telecommunications industry are analyzed. Lastly, some conclusions, future lines of research and practical recommendations are presented.
