market to analyze the effects of an external cost shock. I find strong evidence that prices do not fall to marginal costs … explained by the model of Edgeworth price cycles. A key element of this model is that prices fall to marginal costs during a …

to compare prices, the idea of market definition is entering a new era as it infiltrates the digital sphere. Since … December 1st, 2013 the market transparency unit of the Federal German Cartel Office is forwarding all prices, for every … how prices of highway gasoline stations are dependent upon prices offered by street gasoline stations in the vicinity, and …