Ostrovsky, Michael; Paes Leme, Renato - In: Theoretical economics : TE ; an open access journal in … 10 (2015) 3, pp. 853-865
We show that the class of preferences satisfying the Gross Substitutes condition of Kelso and Crawford (1982) is strictly larger than the class of Endowed Assignment Valuations of Hatfield and Milgrom (2005), thus resolving the open question posed by the latter paper. In particular, our result...
