According to the Merger Guidelines, the Antitrust Authority has to challenge an anticompetitive merger. These guidelines, however, neglect the parties' litigation costs during trial. We analyze under which circumstances these costs are so high that the agency's intervention is inefficient.

The first-order approach in rank-order tournaments is addressed. It is demonstrated that the conditions given in the literature are not sufficient to guarantee concavity of agents' objective functions. Additional conditions are provided that ensure validity of the first-order approach.

A standard tournament contract specifies only tournament prizes. If agents’ performance is measured on a cardinal scale, the principal can complement the tournament contract by a gap which defines the minimum distance by which the best performing agent must beat the second best to receive the...

We show that a team may favor self-sabotage to influence the principal’s contract decision. Sabotage increases a team member’s bonus and total team effort. If these benefits outweigh the reduction in the success probability, sabotaging the team is rational.

It is well-known that, in static models, minimum wages generate positive worker rents and, consequently, inefficiently low effort. We show that this result does not necessarily extend to a dynamic context. The reason is that, in repeated employment relationships, firms may exploit workers'...