Qualifications for several world championships in sports are organised such that distinct sets of teams play in their own tournament for a predetermined number of slots. Inspired by a recent work studying the problem with the tools from the literature on fair allocation, this paper provides an...

The theory Ordinals can serve as a replacement for the theory ZFC because:• Ordinals are a very well understood mathematical structure.• There is only one model of Ordinals up to a unique isomorphism, which decides every proposition of the theory Ordinals in the model.• The theory Ordinals...

A labdarúgó-világbajnokság selejtezőit a Nemzetközi Labdarúgó-szövetség (FIFA) hat regionális konföderációja szervezi, amelyek mindegyikéből előre adott számú válogatott jut ki a világbajnokságra. Tanulmányunkban egy, a konföderációk múltbeli teljesítményének...

This note elaborates an extension of the paper 'Social Norms, the Welfare State, and Voting' by Lindbeck, Nyberg, and Weibull [1]. That paper studies the effects of a social norm against living off others work. In the welfare-state context of their model, this means that individuals who live on...