Introduction to judgment aggregation

• 成果类型: Editorial Material
• 署名作者: List, Christian; Polak, Ben
• 署名单位: University of London; London Business School; Yale University; Yale University; University of London; London Business School
• 刊物名称: JOURNAL OF ECONOMIC THEORY
• ISSN/ISSBN: 0022-0531
• DOI: 10.1016/j.jet.2010.02.001
• 发表日期: 2010
• 页码: 441-466
• 关键词: Judgment aggregation; Arrow's theorem; Escape-routes

摘要

This introduces the symposium on judgment aggregation. The theory of judgment aggregation asks how several individuals' judgments on some logically connected propositions can be aggregated into consistent collective judgments. The aim of this introduction is to show how ideas from the familiar theory of preference aggregation can be extended to this more general case. We first translate a proof of Arrow's impossibility theorem into the new setting, so as to motivate some of the central concepts and conditions leading to analogous impossibilities, as discussed in the symposium. We then consider each of four possible escape-routes explored in the symposium. (C) 2010 Elsevier Inc. All rights reserved.