We study a voting model with partial information in which the evaluation of social welfare must be based on information about agents' top choices plus qualitative background conditions on preferences. The former is elicited individually, while the latter is not. The social evaluator is modeled...

We critically discuss the Jefferson/D'Hondt and Webster/Sainte-Laguë methods, which are used to allocate parliament seats to parties in the mixed-member proportional representation systems in Germany, New Zealand, Bolivia, South Africa, South Korea, Scotland and Wales, as well as in the...

This paper introduces a new storable vote mechanism (storable votes, pay-as-you-win-mechanism, SV-PAYW) where a fixed number of votes can be cast among different alternatives, and the votes spent (and redistributed) on each election depend only on the number cast for the wining alternative. The...

Condorcet domains are sets of preference orders such that the majority relation corresponding to any profile of preferences from the domain is acyclic. The best known examples in economics are the single-peaked, the single-crossing, and the group separable domains. We survey the latest...

This study examines strategic communication before voting under various voting rules. A set of imperfectly informed voters communicate before casting their votes in binary elections. Voters have partially conflicting interests: there is a correct alternative in some states, while in others,...

This research project investigates whether one of the purported benefits of Ranked Choice Voting (RCV) – an expanded candidate pool – has been realized in the cities where it has been implemented. Employing a difference-in-differences approach with matching, I find that any increase in the...

The expression "cash-for-votes" describes a form of vote buying in which candidates for office pay individuals in exchange for their votes. That practice undermines the functioning of democracy but is pervasive in many parts of the world, especially in the Global South. We discuss estimates of...