Konglomerate Marktmacht auf digitalen Märkten

'Conglomerate Market Power in Digital Markets. An Analysis with Particular Consideration of the Novel Market Power threshold in Section 19a (1) of the German Act against Restraints of Competition (GWB)': Digital conglomerates probably pose the greatest challenge for competition law in the digital economy, as they often have cross-market behavioural scope within digital ecosystems. The work analyses in particular Section 19a (1) of the German Act against Restraints of Competition (GWB) and the Digital Markets Act (DMA) as special approaches to capture digital conglomerate behavioural scope. In order to enable a more effective control, various proposals for adapting competition law are made.