to the Handbook on Approval Voting -- History of Approval Voting -- Acclamation Voting in Sparta: An Early Use of Approval Voting -- Going from Theory to Practice: The Mixed Success of Approval Voting -- Axiomatic Theory -- Collective Choice for Simple Preferences -- Axiomatizations of Approval...

In a classical voting situation, each voter in a group is asked to report a ranking over a set of alternatives, and a voting rule is applied to determine a winning alternative. But voters may also hold approval preferences, giving rise to an approval winner. If voters with approval preferences...