mobile telecommunications. Using a uniquely constructed panel of mobile operators' prices and accounting information across … findings are not only relevant for the current consolidation wave in the telecommunications industry. More generally, they … stress that competition and regulatory authorities should take seriously the potential trade-off between market power effects …

that are more effective at preventing outsider's entry and at mitigating price competition lead to less patenting. We test … restrict entry and price competition. We show that guilds which originated from medieval religious confraternities were more … likely to regulate entry and competition, and that the effect on patenting is robust to instrumenting guild statutes with …

to competition between ISPs and to competition between contents. We also show that when (competitive) content providers …

broker therefore strategically sells partial information on consumers in order to soften competition between firms. Extending …

We consider dynamic competition among platforms in a market with network externalities. A platform that dominated the … the focal platform whenever such equilibrium exists. Yet when faced with higher-quality competition, can a low …

multimarket contact generates mutual forbearance in frequency competition, finding no evidence for such an effect …

competition between the TV channels, since they take into account the fact that a lower viewer price at one channel will harm …

In this paper we show how an upstream firm can prevent destructive competition among downstream firms producing …