Suzumura, Kotaro; Xu, Yongsheng - In: Social Choice and Welfare 21 (2003) 1, pp. 21-37
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...