Do we have effective competition between the gasoline's big five oligopolists (Aral, Shell, Esso, Total and Jet) and fringe gasoline stations? Using 2014 Market Transparency price data from 66 cities with populations between 60,000 and 100,000, we analyze which brands lead price increases, the...

We examine the relation between consumer search and equilibrium prices when collusion is endogenously determined. We develop a theoretical model and show that average price is a U-shaped function of the measure of searchers: prices are highest when there are no searchers (local monopoly power)...

Preisalgorithmen sind aus dem heutigen Online-Handel nicht mehr wegzudenken. Die Nutzung von Preisalgorithmen wirft dabei grundlegende Fragen danach auf, wie wir Wettbewerb verstehen und schützen. Diese Arbeit analysiert die Auswirkungen der Nutzung von Preisalgorithmen in...