A majority of truth-seeking voters wants to choose the alternative that better matches the state of the world, but may disagree on its identity due to private information. When we have an arbitrary number of alternatives and also sophisticated partisan voters exist in the electorate, the...

A vote-buying mechanism is such that each agent buys a quantity of votes x to cast for an alternative of her choosing, at a cost c(x), and the outcome is determined by the total number of votes cast for each alternative. In the context of binary decisions, we prove that the choice rules that can...

The main purpose of this short paper is to examine how traditional Downsian dynamics (convergence of the parties to the median of the distribution) are altered by the introduction of centrifugal incentives arising from the fact that any motion towards the center induces a lost of votes at the...

The main purpose of this short paper is to examine how traditional Downsian dynamics (convergence of the parties to the median of the distribution) are altered by the introduction of centrifugal incentives arising from the fact that any motion towards the center induces a lost of votes at the...

We study a voting scheme for multiple alternatives. Our scheme generalizes the two-alternative quadratic voting scheme of Lalley and Weyl. We prove that our generalization results in an outcome where the most-valued alternative wins, and that the vote totals order alternatives from most-to-least...

The Brexit vote took place three days before the June 26, 2016, Spain's parliamentary elections, in which anti-systemic parties performed worse compared to the previous elections (December 2015) despite the optimistic predictions of the pre-election polls and the surge in the support for...

In the period after the break of the Great Recession a series of drastic changes in the political systems of many affected countries occurred: the predominant role of systemic parties in forming political outcomes was challenged and many previously non-systemic voices gained significant...

We study how beliefs about firm value respond to public information stemming from either public announcements or shareholder meetings. We focus on settings with homogeneous shareholders (i.e., agents with common preferences and opinions), where information is about which course of action is best...

We design the class of (indirect) Approval mechanisms which allow the players' strategies to coincide with the subsets of the outcome space. By focusing on the single-peaked domain, we prove that: a) Each of these mechanisms is characterized by a unique equilibrium outcome, and b) for almost...

In the single-peaked domain, the median rules (Moulin, 1980) are of special interest. They are, essentially, the unique strategy-proof rules as well as the unique Nash implementable ones under complete information. We show that, under mild assumptions on admissible priors, they are also...