Plattformen sind mehr als Unternehmen, sie sind die Herrschaftszentren unserer Zeit. Facebook, Google und Amazon ersetzen Marktplätze und öffentlichen Räume, doch sie entscheiden darüber, wer sich dort aufhalten darf und welche Regeln gelten. Von Staaten sind sie kaum zu kontrollieren, sie...

Two-sided market theory predicts that platforms may subsidize the participation of one type of agent by extracting surplus from another type to internalize indirect network externalities. However, few empirical studies exist to evaluate the impact of government intervention in these markets. We...

The bloom is off the Big Tech rose. It seems nearly the entire political spectrum is angry with Amazon, Google and Facebook for one reason or another. This has led to a great deal of discussion on whether and how to regulate (or even break up) these platforms, including whether they should be...

This paper examines price level regulation in two-sided markets with linear demands. We find that (i) price level regulation increases the price allocation asymmetry when reservation prices differ between the two sides of the market; and (ii) changes in the level of the price cap are divided...