It is widely believed that vertical integration in an environment without foreclosure, or more generally without any …

mergers and economic theory, moreover, demonstrates that privately unprofitable mergers can be the result of rational action … such a rule would cause a considerable amount of false positives. -- oligopoly theory ; horizontal merger policy …

Media markets recently have been identified as multisided markets. The application of the theory of multisided markets … theory of multisided markets and subsequently applies it to media markets. Finally the paper draws attention to the new … perspectives and insights the theory provides but also brings open research questions to light. -- media economics ; two …

predicted by theory, an increase in the number of firms from two to four reduces investments. However, a positive effect is … observed for a switch from Cournot to Bertrand, even though theory predicts a negative effect in the four-player case. This …