Preface -- General Aspects -- Aggregation and Voting -- Algorithms and Complexity -- Axiomatics -- Behavioral Aspects -- Fair Division -- Implementation -- Interpersonal Relations -- Law -- Matching and Markets -- New Technologies

In polarized committees, majority voting disenfranchises the minority. Allowing voters to spend freely a fixed budget of votes over multiple issues restores some minority power. However, it also creates a complex strategic scenario: a hide-and-seek game between majority and minority voters that...

The paper builds upon an original pre- and post-election survey that we conducted before and after the 2015 Canadian election. Directly after Election Day, we asked Canadians for which party they voted, and whether they regret their choice. We find that 39% of them are not perfectly happy with...

This paper presents the experimental results of a “Transcontinental Ultimatum Game” implemented between India and France. The bargaining took the form of standard ultimatum games, but in one treatment Indian subjects made offers to French subjects and, in another treatment, French subjects...

In this paper, we introduce the concept of a comparison function, which is a mapping g that assigns numbers to ordered pairs of alternatives (x,y) with the property that g(x,y)=- g(y,x). The paper discusses how some well-known choice correspondences on tournaments such as the uncovered set, the...