Article [Version of Record]
Is part ofCahier de recherche ; no. 2006-03.
Publisher(s)Université de Montréal. Département de sciences économiques.
- Ordering Extensions
- Population Ethics
- [JEL:D01] Microeconomics - General - Microeconomic Behavior: Underlying Principles
- [JEL:D63] Microeconomics - Welfare Economics - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
- [JEL:D71] Microeconomics - Analysis of Collective Decision-Making - Social Choice; Clubs; Committees; Associations
- [JEL:D63] Microéconomie - Économie du bien-être - Egalité, justice, inégalité et autres critères normatifs et mesures
- [JEL:D71] Microéconomie - Analyse de prise de décision collective - Choix social, clubs, comités
Consistency, a natural weakening of transitivity introduced in a seminal contribution by Suzumura (1976b), has turned out to be an interesting and promising concept in a variety of areas within economic theory. This paper summarizes its recent applications and provides some new observations in welfarist social choice and in population ethics. In particular, it is shown that the conclusion of the welfarism theorem remains true if transitivity is replaced by consistency and that an impossibility result in variable-population social-choice theory turns into a possibility if transitivity is weakened to consistency.