Publication Type

Working Paper

Publication Date

6-2012

Abstract

A domain of preference orderings is a random dictatorship domain if every strategy- proof random social choice function satisfying unanimity defined on the domain, is a random dictatorship. Gibbard (1977) showed that the universal domain is a random dictatorship domain. We investigate the relationship between dictatorial and random dictatorship domains. We show that there exist dictatorial domains that are not random dictatorship domains. We provide stronger versions of the linked domain condition (introduced in Aswal et al. (2003)) that guarantee that a domain is a random dictatorship domain. A key step in these arguments that is of independent interest, is a ramification result that shows that under certain assumptions, a domain that is a random dictatorship domain for two voters is also a random dictatorship domain for an arbitrary number of voters.

Keywords

Strategy-proofness, Random social choice functions, Random dictatorship

Discipline

Economics | Economic Theory

Research Areas

Economic Theory

First Page

1

Last Page

35

Publisher

Singapore Management University Economics and Statistics Working Paper Series, Paper No. 27-2012

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Comments

Food Policy

Share

COinS