Abstract Arrowian aggregation

• 成果类型: Article
• 署名作者: Nehring, Klaus; Puppe, Clemens
• 署名单位: Helmholtz Association; Karlsruhe Institute of Technology; University of California System; University of California Davis
• 刊物名称: JOURNAL OF ECONOMIC THEORY
• ISSN/ISSBN: 0022-0531
• DOI: 10.1016/j.jet.2010.01.010
• 发表日期: 2010
• 页码: 467-494
• 关键词: Judgement aggregation; social choice; Non-dictatorship; Local non-dictatorship; anonymity; neutrality; Median spaces; Median points; Intersection property; Conditional entailment; Critical family

摘要

In a general framework of abstract binary aggregation, we characterize aggregation problems in terms of the monotone Arrowian aggregators they admit. Specifically, we characterize the problems that admit non-dictatorial, locally non-dictatorial, anonymous, and neutral monotone Arrowian aggregation, respectively. As a consequence of these characterizations, we also obtain new results on the possibility of strategy-proof social choice and the concrete Arrowian aggregation of preferences into a social ordering on generalized single-peaked domains. (C) 2010 Elsevier Inc. All rights reserved.