On online platforms, consumers face an abundance of options that are displayed in the form of a position ranking. Only products placed in the first few positions are readily accessible to the consumer, and she needs to exert effort to access more options. For such platforms, we develop a...

Online platforms are considered as very powerful economic agents often tending to obtain oligopolistic or even monopolistic positions in the market. In this respect, the liability of platform operators has been constantly discussed among scholars. The sharpest issue in this respect is whether...

Two-sided platforms have gained increasing importance as a business model and research attention over the last couple of years. Examples in the consumer-to-consumer domain include platforms for accommodation sharing, shared mobility services, car sharing, resale, crowd-work, and many more. As...