In this paper, we tackle the dilemma of pruning versus proliferation in a vertically differentiated oligopoly under the …

ignorance if telephone numbers no longer identify networks. As a result, while fostering competition for mobile customers, MNP … competition …

This article analyzes competition between two asymmetric networks, an incumbent and a new entrant. Networks compete in …

The paper analyzes the effects of more intense competition on firms' incentives to invest in process innovations. We … carry out experiments for two-stage games, where R&D investment choices are followed by product market competition. As … predicted by theory, an increase in the number of firms from two to four reduces investments. However, a positive effect is …