Event studies represent an increasingly popular method to evaluate the welfare effects of economic policy decisions. The basic idea is that stock market reactions to the announcement of policy decisions contain superior information about the welfare effects of these decisions. This paper...

Selten hat ein wettbewerbspolitischer Fall so viel Interesse und Kontroversen hervorgerufen wie der E-Book-Fall rund um Amazon, bei dem führende Verlage und große Unternehmen wie Apple involviert sind. Doch dieser spiegelt nur eine von vielen unternehmerischen Vorgehensweisen Amazons wider....

In this article, we discuss, from an economic perspective, two alternative views of restrictions of competition by sports associations. The horizontal approach views such restrictions as an agreement among the participants of a sports league with the sports association merely representing an...