This paper presents optimal collective dichotomous choices under quota constraints. We focus on committees that have to decide whether to accept or reject a set of projects under quota constraints. We provide a method for optimal ranking of projects which is suitable for solving this problem....

The merit of approval voting has been widely discussed in the past 25 years. The distinct property of this rule is the extent of flexibility it allows; any voter can approve as many alternatives/candidates as he wishes. Nevertheless, this advantage is the very reason for two drawbacks of...

The Borda rule is known to be the least vulnerable scoring rule to Condorcet inconsistency, Saari (2000). Such inconsistency occurs when the Condorcet winner (the alternative which is preferred to any other alternative by a simple majority) is not selected by the Borda rule. This note exposes...