We trace the developments that led to quadratic voting, from Vickrey's counterspeculation mechanism and his second-price auction through the family of Groves mechanisms and its most notable member, the Clarke mechanism, to the expected externality mechanism, the Groves-Ledyard mechanism, and the...

One criterion for evaluating voting rules is the frequency with which they select the best candidate. Using a spatial model of voting that is capable of simulating data with the same statistical structure as data from actual elections, we simulate elections for which we can define the best...