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...

We consider measuring the degree of homogeneity for preference-approval profiles which include the approval information for the alternatives as well as the rankings of them. A distance-based approach is followed to measure the disagreement for any given two preference-approvals. Under the...