This dissertation analyzes the impact of network externalities on R&D competition in an oligopolistic industry. It focuses on the level of R&D investments, the social efficiency of those efforts and the role of networks compatibility. The analysis is taken under different specifications and...

This thesis consists of 4 chapters in the field of applied microeconomics. Chapter 1 develops a model of international roaming. International alliances emerge endogenously and serve as a commitment device to soften competition on the retail market. Chapter 2 provides an explanation for why...