Das Dopingproblem im Spitzensport ist lösbar. Es besteht in einer sozialen Dilemmasituation, in der es im Gleichgewicht für jeden einzelnen Sportler rational ist, Dopingmittel einzunehmen, obwohl jeder von ihnen besser stehen könnte, wenn niemand solche Substanzen konsumierte. Anders als die...

The paper reconstructs the origins of the quantity theory of money and its applications. Referring to the history of money, it is shown that the theory was flexible enough to adapt to institutional change and could thus maintain its actuality. To this day, it is useful as an analytical...

This contribution examines whether the share price of the Borussia Dortmund GmbH & Co. KgaA (BVB) behaves according to the (capital) market efficiency hypothesis of Fama (1970). The weak form of capital market inefficiency, according to which past share prices cannot be used for predictions in...