caa a22 4500 463174275 CHVBK 20180406164821.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s00355-006-0154-7 doi (NATIONALLICENCE)springer-10.1007/s00355-006-0154-7 Dictatorial domains in preference aggregation [Elektronische Daten] [Ugur Ozdemir, M. Sanver] We call a domain of preference orderings "dictatorial” if there exists no Arrovian (Pareto optimal, IIA and non-dictatorial) social welfare function defined over that domain. In a finite world of alternatives where indifferences are ruled out, we identify a condition which implies the dictatoriality of a domain. This condition, to which we refer as "being essentially saturated”, is fairly weak. In fact, independent of the number of alternatives, there exists an essentially saturated (hence dictatorial) domain which consists of precisely six orderings. Moreover, this domain exhibits the superdictatoriality property, i.e., every superdomain of it is also dictatorial. Thus, given m alternatives, the ratio of the size of a superdictatorial domain to the size of the full domain may be as small as 6/m!, converging to zero as m increases. Springer-Verlag, 2006 Ozdemir Ugur Department of Economics, Pennsylvania State University, University Park, PA, USA aut Sanver M. Department of Economics, Istanbul Bilgi University, Istanbul, Turkey aut Social Choice and Welfare Springer-Verlag 28/1(2007-01-01), 61-76 0176-1714 28:1<61 2007 28 355 https://doi.org/10.1007/s00355-006-0154-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00355-006-0154-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ozdemir Ugur Department of Economics, Pennsylvania State University, University Park, PA, USA aut NATIONALLICENCE 700 1- Sanver M. Department of Economics, Istanbul Bilgi University, Istanbul, Turkey aut NATIONALLICENCE 773 0- Social Choice and Welfare Springer-Verlag 28/1(2007-01-01), 61-76 0176-1714 28:1<61 2007 28 355 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer