A new characterization of absolute qualified majority voting

Abstract

We show that the class of absolute qualified majority voting rules are the only ones to satisfy Anonymity, Neutrality, Monotonicity, Weak Pareto and Decisiveness Non-Equivalence. When there are two alternatives x and y, the latter axiom states that if an individual voting for y can improve the result of x by abstaining, then it is not the case that an individual abstaining can improve the result of x by voting for x.Absolute Qualified Majority Voting.