Personnel economics is a rather young academic (sub-)discipline that applies (micro) economic methodology and insights to the personnel function of companies. It is scientifically fertile and complementary to other disciplinary approaches to personnel issues. Instead of that, an approach without...

Most universities in Germany are public firms but they have many properties of cooperatives. The most important thereof are described and analysed together with the characteristics of state-sponsorship. The real companions of the university as a cooperation are its professors. The same is true...

In traditional game theory, strategies are equivalent with actions and mixed strategies are the only extension. As a new extension, strategies are interpreted as plans. Although most plans are not very interesting (like doing a certain action), some conditional plans are. For example, they...

If one of two rational players is absent-minded for at least three rounds, cooperation in a prisoners dilemma with a finite number of repetitions is possible. If both players are absentminded, even two rounds of absent-mindedness can be enough for cooperation in these rounds and all rounds...