Algorithmic learning gives rise to a data-driven network effects, which allow a dominant platform to reinforce its dominant market position. Data-driven network effects can also spill over to related markets and thereby allow to leverage a dominant position. This has led policymakers to propose...

Ubiquitous high-speed fiber-based and mobile broadband availability is a key economic policy goal in the European Union and other developed countries. Policymakers seek to boost economic growth, productivity, and employment, especially in remote areas, through ambitious broadband targets and...

We introduce a binding unanimous voting rule to a public goods game with an uncertain threshold for the total group contribution. In a laboratory experiment we find that voting generates significantly higher total contributions than making individual voluntary contributions to the public good....

Cost cap tariffs are pay-per-use tariffs for which costs cannot exceed a predefined cost limit. They were recently introduced to telecommunications markets, but were previously also applied in the insurance industry as deductibles or in the rental industry as day rates. This paper develops and...

With the use of a laboratory experiment, we show the effects of co-investments on coverage, competition and price collusion in regulated network industries. On the one hand, co-investments turn out not to be a significant driver of new infrastructure investments beyond the level achieved by...

Auction fever is a multifaceted phenomenon thatis frequently observed in both traditional and Internetauctions. In order to gain a better understanding of itscauses, we develop a conceptual framework to analyzeemotions in auctions, which is based on an exhaustiveliterature review. The framework...

At the Karlsruhe Institute of Technology (KIT), the Graduate School InformationManagement and Market Engineering (IME) which is financed by the GermanResearch Association (Deutsche Forschungsgemeinschaft, DFG), offers an interdisciplinarydoctoral program on the economic, technological and legal...

Wir untersuchen den Einfluss sogenannter Feedbackmechanismen auf die Beteiligung im Web 2.0 Kontext. In einer explorativen Studie wurden zwanzig Studierende bei der Registrierung für ein Vorlesungswiki zufällig, entweder der Experimentalbedingung (Feedback nach jedem Beitrag) oder der...

In einer Pilotstudie an der Universität Karlsruhe wurden Wiki-Systeme in die Hochschullehre integriert, mit dem Ziel die Studierenden schon während des Semesters zu einer aktiven Auseinandersetzung mit dem Lehrstoff zu animieren. In dieser Arbeit werden die wesentlichen Erkenntnisse der Studie...