Multimedia Democracy

Collective Decision and Voting Methods

Should we wish for the best or focus on damage control? From deciding who will sit on the U.S. Supreme Court, to choosing a cake for guests, or distributing a budget, the question is always there. Anna Bogomolnaia, Ron Holzman, and Hervé Moulin look at the mechanisms of decision-making and come up with ways to increase the guarantee that the worst will not happen. 

By Hervé Moulin

Hervé Moulin

University of Glasgow

Aurore Basiuk

Aurore Basiuk

Journaliste scientifique

The different ideas of what’s fair leads to different choices, and how people make decisions will favor one of these criteria over the other.

How can we ensure that the probability of the worst-case scenario is as low as possible?

Do voting methods impact election results?


Bogomolnaia A., Holzman R., Moulin H., 2021, "Worst Case in Voting and Bargaining," Documents de travail du Centre d'Economie de la Sorbonne 21012, Université Panthéon-Sorbonne (Paris 1).