Subjects in collective action experiments like the voluntary contribution mechanism (Davis and Holt, 1993) display varying predispositions ranging from stronger or weaker inclinations to cooperate (including willingness to engage in costly punishment of non-cooperators) to relatively...

Voting Paradoxes and Their Probabilities -- Condorcet's Paradox and Group Coherence -- Other Incompability Paradoxes -- Other Voting Paradoxes -- Condorcet Efficiency and Social Homogeneity -- Coherence and the Efficiency Hypothesis -- Other Characteristics of Voting Rules -- The Significance of...

Power indices suggest that adding new members to a voting body may affect the balance of power between the original members even if their number of votes and the decision rule remain constant. Some of the original members may actually gain, a phenomenon known as the paradox of new members. We...