A labor market is considered that is characterized by job competition over job ladders. Firms paying more for comparable jobs can attract workers with better background characteristics (with general human capital) and will lose fewer trained workers (with general and firm-specific human...

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...