Rational and Bounded Rational Choices with Multiple Criteria

2014 Fiscal Year Final Research Report

• Project/Area Number: 24330062
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Economic theory
• Research Institution: Hitotsubashi University
• Principal Investigator: TADENUMA Koichi 一橋大学, 大学院経済学研究科, 教授 (50227112)
• Co-Investigator(Kenkyū-buntansha): SUZUMURA Kotaro 早稲田大学, 栄誉フェロー (00017550)
• Research Collaborator: BOSSERT Walter University of Montreal, Canada, Professor ; HOUY Nicolas GATE Lyon St-Etienne, France, CNRS Researcher ; FLEURBAEY Marc Princeton University, U.S.A., Robert E. Kuenne Professor ; XU Yongsheng Georgia State University, U.S.A., Professor
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 経済理論 / 選択理論 / 合理性 / 限定合理性 / 評価基準 / 社会的選択 / 個人的選択

Outline of Final Research Achievements

We study bounded rationality of individual and social choices with multiple criteria. First, we consider the lexicographic application of two criteria, which gives priority to one criterion over the other. We introduce its conditional version in order to avoid cyclic choices, and characterize the choice method by means of properties of bounded rationality and those about choices in simple situations.
Second, we consider “choice via grouping procedures,” in which we first categorize the alternatives into several groups and select an alternative in each group, and then from the “winners” we make a final choice. We show that this choice method is a special case of the lexicographic application of two criteria in which the first criterion is represented as a transitive preference relation.

Free Research Field

社会的選択理論