In this paper, we compare two procedures for allocating a sequence of fixed prizes in multi-stage nested Tullock contests, in which the number of prizes equals the number of contestants. In a winner-leave (loser-leave) procedure, in each stage, the prizes of the stage are allocated to winners...

In this paper, we study score procurement auctions with all-pay quality bids. A supplier's score is the difference between his quality and price bids. The supplier with the highest score wins and gets paid his own price bid. The procurer's payoff is the difference between the winner's quality...