We estimate Cox models to determine proportional hazard rates in professional basketball, concerning leaving the league or changing the team by using a database covering all players of the NBA in the 90's. We predict and confirm that league-hazards depend on a player's performance. A teamswitch,...

A simple decision theoretic model shows the doping incentives for a member of a professional sports team. Depending on the detection probability and the punishment, a sportsman dopes not at all, at a medium or at the maximal level. The whole team has a higher incentive than an individual team...

Globalisation affects not only politics and the economy, but also sport, which has become significantly more international, competitive and financially powerful. This is particularly advantageous for most consumers or spectators. Especially top athletes benefit, while not so good athletes can...

Im Mai 2008 verabschiedete der Fußball-Weltverband (FIFA) eine Resolution zur sogenann-ten 6+5-Regel. Nach dieser Regel muss die Anzahl einheimischer Spieler in der Startforma-tion von Vereinsmannschaften im Profifußball stufenweise aufgestockt werden. Über die Reglementierung des Einsatzes...