An extension rule assigns to each fractional tournament x (specifying, for every pair of social alternatives a and b, the proportion xab of voters who prefer a to b) a random choice function y (specifying a collective choice probability distribution for each subset of alternatives), which...

In this study, we examine the influence of air pollution, measured by particulate matter concentration (PM₁₀ and PM₂.₅), on sabotage in rank order tournaments. To achieve this, we use player-level data from German Bundesliga players between 2009 and 2024, which we link with hourly...

This paper discusses how hope and love help to facilitate cooperation in sequential games by removing conflicts of interests. Rationality combined with material self-love induces players to build institutions that ensure that interests run parallel by constraining people from obtaining material...

Peer evaluation tournaments are common in academia, the arts, and corporate environments. They make use of the expert knowledge that academics or team members have in assessing their peers’ performance. However, rampant opportunities for cheating may throw a wrench in the process unless,...

We conduct a laboratory experiment to compare the fairness and intensity of round-robin tournaments with three symmetric players, a single prize, and two alternative match formats. Matches are either organized as lottery contests or all-pay auctions. Whereas we confirm the theoretical prediction...

This paper provides a general study of a contest modeled as a multiplayer incomplete-information, all-pay auction with sequential entry. The contest consists of multiple periods. Players arrive and exert efforts sequentially to compete for a prize. They observe the efforts made by their earlier...