We estimate the spillovers on firm profitability and market shares in oligopolistic markets through the transition from an n to an n-1 player oligopoly after a merger in the industry. Competitors are identified via the European Commission s market investigations and our methodology allows us to...

This paper deals with the application of the SIEC test in German merger control using the decision by the Bundeskartellamt (German Federal Cartel Office) in the Edeka/ Kaiser’s Tengelmann case (file no. B2-96/14) as an example. The focus is on two aspects which are of particular interest from...

Platform businesses have been pivotal in the rise of the digital economy. Amazon is one example of a platform taking on the role of a quasi-regulator; an entity that is able to determine the terms of interaction on the platform. This intermediary position entails the danger of anti-competitive...

This article analyzes endogenous efficiency gains from mergers. It considers oligopolistic homogeneous good markets and duopolistic and triopolistic markets under product differentiation (PD) (quantity and price competition). In a two-stage game, firms invest in cost-reducing innovation with and...

The literature shows that horizontal shareholding engenders significant anticompetitive effects and that no suitable instrument exists within European competition law which reliably and effectively can be applied to curtail such intrinsic effects. This Article analyses several proposals which...

This paper explores, both theoretically and empirically, the impact of granting antitrust immunity (ATI) to airline alliances in a novel and realistic framework characterized by vertically-differentiated air services. Our theoretical model suggests that non-ATI alliances produce an up-market...

This paper analyzes endogenous efficiency gains from mergers. It considers oligopolistic homogeneous good markets and duopolistic and triopolistic markets under product differentiation (quantity and price competition). In a two-stage game, firms invest in cost-reducing innovation (with and...

Digital platforms operate in multisided markets providing services through the internet to two or more distinct groups of users, between which there are indirect network effects. Direct network effects are frequently present within each group. Therefore, online platforms usually present both...

There are very few industries that can attract the attention of Congress, multiple federal and state agencies, consumer groups, economists, antitrust lawyers, the business community, farmers, ranchers, and academics as the agriculture workshops have. Of course, with intense interest from...

The debate on the regulation of minority shareholdings as a type of “structural link” between competing undertakings is not a new one in the sphere of EU competition law. As a matter of policy, the incomplete and rather divisive treatment of minority shareholdings under the current EU merger...