Im Hinblick auf die Verabschiedung des Digital Services Act im Jahr 2022, der einen neuen horizontalen Rechtsrahmen für die Regulierung digitaler Dienste vorsieht, analysiert dieses Diskussionspapier die Moderation von Inhalten auf Online-Plattformen. Die Moderation von Inhalten ist eine sehr...

[Introduction:] The route to customers is becoming increasingly digital, for any business. There is hardly any business that is not focussing on reaching customers online. The Covid-19 pandemic has further accelerated this trend. In many markets, digital platforms have become essential tools for...

Climate change is one of the greatest market failures of our time. This thesis consists of three essays in which we study the economics of climate change using networks as a theoretical framework. In the first essay, we discover flaws in the foundations of a recent strand of literature...

Der vorliegende Beitrag zeigt, dass die Festlegung der Fertigungstiefe in der Gegenstromplanung von Strategien kein stringentes Instrument der Unternehmensführung ist. Die Top-Down und Bottom-Up Analyse über die hierarchischen Ebenen der Unternehmens-, Wettbewerbs- und Funktionalstrategie...

In the German automobile industry the vertical integration, as an indicator of value added, is on average low. Beyond the argument of relative high labour costs for manufacturing, several specific reasons for the level of vertical integration, linked to the flexibility of business administration...

In this work we discuss the impact of the new ICT techno-economic paradigm upon the vertical and horizontal boundaries of the firm and ask whether the change in the sources of competitive advantage has resulted in changes in the size distribution of firms and also in the degree of concentration...

We provide a theoretical framework to discuss the relation between market size and vertical structure in the railway industry. The framework is based on a simple downstream monopoly model with two input suppliers, labor forces and the rail infrastructure firm. The operation of the downstream...

We provide a simple model to investigate decisions on vertical integration/separation. The key feature of this model is that more than one input is required for the final products of the local downstream monopolists. Depending on their cost structure, downstream firms' decisions on vertical...

The paper explores incentives for strategic vertical separation of firms in a framework of a simple duopoly model. Each firm chooses either to be a retailer of its own good (vertical integration) or to sell its good through an independent exclusive retailer (vertical separation). In the latter...