Judgment aggregation theory, or rather, as we conceive of it here, logical aggregation theory generalizes social choice theory by having the aggregation rule bear on judgments of all kinds whatever, and not barely judgments of preference. It derives from Kornhauser and Sager?s doctrinal paradox...

In 2009, France is expected to create a new minimum income guarantee called ?revenu de solidarité active? (RSA) in order to replace several existing programmes. It should benefit those in work according to a degressive schedule that reminds one of the negative income tax or universal basic...