The quantitative evaluation of research performance in business administration has recently gained some attention in German-speaking countries. This holds especially for rankings of persons, which are discussed controversially. Rankings of academics can be constructed in two different ways,...

We analyse changes in the National Football League (NFL) due to ghost games in 2020. The home bias disappears as expected. However, referee decisions do not seem to be relevant for this. There are also no significant results for semi-ghost games with a reduced number of spectators

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...

Performance pay, at least as usually understood, is no good idea for non-executive directors. They have to supervise and control or in some situations even to fire and replace the executive managers. This means that their performance as supervisors is totally different from the performance of...

We analyse whether the creation of the eurozone and the euro crisis had an effect on the sportive performance of professional football teams in European nations. We find a significantly positive sign of membership in the eurozone on UEFA points. However, this positive finding is not robust over...