This article discusses two elements that the draft EU Directive on actions for damages treats only perfunctorily. The first concerns lucrum cessans or the quantity effect which is found to be of a relatively higher magnitude than the price effect. The second concerns the difficulties of...

We analyse the key determinants of umbrella effects, which arise when the price increase or quantity reduction of a cartel diverts demand to substitute products. Umbrella effects arise irrespective of whether non cartelists act as price takers (“competitive fringe”) or respond strategically...

The article critically examines the European Commission's decision in the four-to-three merger between Telefónica Deutschland and E-Plus. Despite the explicit recognition of the importance of vertical effects in the telecommunications sector more generally as exemplified by the European...

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...

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...

Die politische Zielsetzung der Klimaneutralität im Jahr 2050 bedarf einer effizienten Umsetzung. Das europäische Zertifikatesystem (EU-ETS) ist dazu allerdings nicht in der Lage und wird mit sehr hoher Wahrscheinlichkeit die notwendige Ausdehnung auf den Transportsektor und die privaten...

We analyze the effects of ostracism on cooperation in a linear public good experiment with fixed partner design. Our results show that introducing ostracism increases contribution levels significantly except in first and last periods. Despite reductions in group size due to ostracism, the net...

We experimentally study the effect of asymmetry on cooperation in a 40 period prisoner's dilemma game in fixed partner design. We distinguish between a high and low payoff symmetric prisoner's dilemma and an asymmetric game combined out of both symmetric ones. Asymmetry significantly decreases...