ABSTRACT

The results in this section are based on Barrett, Pattanaik, and Salles [9]. We consider the question as to how unambiguous or exact choices are generated by fuzzy preferences and whether the exact choices induced by fuzzy preferences satisfy certain plausible rationality properties. Also, see [7, 11, 12, 15, 21, 23, 30]). Several alternative rules for generating exact choice sets from fuzzy weak preference relations are presented. To what extent the exact choice sets generated by these alternative rules satisfy certain fairly weak rationality conditions is also examined.