We analyze the interaction of explicit and implicit contracts in a model with selfish and fair principals. Fair principals are willing to honor implicit agreements, whereas selfish principals are not. Principals are privately informed about their types. We investigate a separating equilibrium in...

We develop a general framework to study contests, containing the well-known models of Tullock (1980) and Lazear & Rosen (1981) as special cases. The contest outcome depends on players' effort and skill, the latter being subject to symmetric uncertainty. The model is tractable, because a...

This paper studies sabotage in a dynamic tournament. Three players compete in two rounds. In the final round, a player who is leading in the race, but not yet beyond the reach of his competitors, gets sabotaged more heavily. As a consequence, if players are at the same position initially, they...

In this paper, we analyze a principal's optimal feedback policy in tournaments. We close agap in the literature by assuming the principal to be unable to commit to a certain policy atthe beginning of the tournament...

In this paper, a group contest is analyzed, where the groups are allowed to determine their sharing rules either sequentially or simultaneously. It is found that in case the more numerous group determines its sharing rule prior to the smaller group, rent dissipation in the group contest is...

In some sports leagues, the sports association sells broadcasting rights centrally in order to create competitive balance. In other ones, the market is decentral. As a result, there is competitive imbalance. In this paper, the preferred kind of marketing of sports associations is analysed....

This paper addresses the selection problem in promotion tournaments. I consider a situation with heterogeneous employees and ask whether an employer might be interested in repeating a promotion tournament. On the one hand, this yields a reduction in uncertainty over the employees` abilities. On...

Individuals faced by a tournament can oftentimes not only choose their effort level, but also the risk level of their strategy. There are some theoretical contributions on risk taking in tournaments, which mainly point out disadvantages with respect to exerted effort. Empirical evidence is rare....