This paper is concerned with the question of how to deal with Google Shopping’s position on online markets in order to prevent harm to public welfare. From the perspective of sellers and buyers of goods and services in Germany, Google can be seen as a gatekeeper to the Internet and thus as an...

Downward nominal wage rigidity (DNWR) could prevent real wage adjustments in times of low inflation rates. Nominal wage rigidity based on annual wages can at least be reduced, if the number of working hours is considered. This leads to a lower degree of DNWR in hourly wage changes. In this...

In this paper, we develop a market screening model to detect inconstancies in price changes. Although there is a long history of industrial organization research of collusion, price setting behavior, and conduct - a robust model to detect structural changes in market structure was missing so...

In diesem Aufsatz wird überprüft, ob Google mit seinem Dienst Google-Shopping, aus Sicht von Verkäufern und Käufern von Waren und Dienstleistungen, in Deutschland als Gatekeeper zum Internet und damit als wesentliche Einrichtung zu sehen ist. Dazu wird untersucht, wie groß die Marktmacht...