Banerjee and Pattanaik (1996) proved a theorem that the maximal set with respect to a quasi-ordering can be fully recovered by defining the greatest sets with respect to each and every ordering extension thereof and taking their union. Donaldson and Weymark (1998) proved a theorem that a...

Two features of Arrow’s social choice theory are critically scrutinized. The first feature is the welfarist-consequentialism, which not only bases social judgements about right or wrong actions on the assessment of their consequences, but also assesses consequences in terms of people’s...

Social choice theory critically assesses and rationally designs economic mechanisms for improving human well-being. Kotaro Suzumura—one of the world’s foremost thinkers in social choice theory and welfare economics—fuses abstract ideas with real-world economies to examine foundational...