We present a structural model to investigate the effects of horizontal cooperation on investment in the context of telecommunication networks. More specifically, we estimate the effect of network sharing in the mobile telecommunications industry on prices, network quality and consumer welfare....

Market definition is one of the most important analytical tools for competition authorities to examine and evaluate competition problems. By defining a relevant market, then calculating and assigning market shares, competition authorities seek to assess the market power of firms, which is of...

Despite a host of recent cases on both sides of the Atlantic, the antitrust implications of retroactive rebates or loyalty discounts are among the most controversial topics in competition law. One of the key beliefs found in the literature is that such schemes lead to lower prices for consumers...

The article briefly introduces Hans Albert and the basic elements of his critique of neoclassical economics as a form of "model Platonism". The two most important elements of his general methodological critique of economics — namely the institutional vacuum inherent in much economic modelling...

Following the standard (acquisition of control) merger logic, merger control regimes have typically treated horizontal minority shareholdings as a matter of coordinated effects. As in a standard horizontal merger case, the transaction implies full control of the target firm and joint profit...

This essay explores the scope of the European Commission's power to impose remedies in cases of abuse of a dominant position under Article 82 of the Treaty establishing the European Community. After introductory remarks regarding the legal basis and objectives of remedies, we delineate the...