Decisive Coalitions and Coherence Properties
dc.contributor.author | Bossert, Walter | |
dc.contributor.author | Suzumura, Kotaro | |
dc.date.accessioned | 2009-03-20T18:49:01Z | |
dc.date.available | 2009-03-20T18:49:01Z | |
dc.date.issued | 2009-03 | |
dc.identifier.uri | http://hdl.handle.net/1866/2741 | |
dc.publisher | Université de Montréal. Département de sciences économiques. | fr |
dc.subject | Infinite-Population Social | en |
dc.subject | Choice | en |
dc.subject | Suzumura Consistency | en |
dc.subject | Decisiveness | en |
dc.subject | D71 | en |
dc.title | Decisive Coalitions and Coherence Properties | en |
dc.type | Article | en |
dc.contributor.affiliation | Université de Montréal. Faculté des arts et des sciences. Département de sciences économiques | |
dcterms.abstract | In a seminal contribution, Hansson has demonstrated that the family of decisive coalitions associated with an Arrovian social welfare function forms an ultrafilter. If the population under consideration is infinite, his result implies the existence of nondictatorial social welfare functions. He goes on to show that if transitivity is weakened to quasi-transitivity as the coherence property imposed on a social relation, the set of decisive coalitions is a filter. We examine the structure of decisive coalitions and analogous concepts with alternative coherence properties, namely, acyclicity and Suzumura consistency, and without assuming that the social relation is complete. | en |
dcterms.isPartOf | urn:ISSN:0709-9231 | |
dcterms.language | eng | en |
UdeM.VersionRioxx | Version publiée / Version of Record | |
oaire.citationTitle | Cahier de recherche | |
oaire.citationIssue | 2009-04 |
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