EconPapers    
Economics at your fingertips  
 

Strategy-proofness and single-crossing

, ()
Additional contact information
,: School of Social Sciences, University of Manchester

Authors registered in the RePEc Author Service: Alejandro Saporiti

Theoretical Economics, 2009, vol. 4, issue 2

Abstract: This paper analyzes strategy-proof collective choice rules when individuals have single-crossing preferences on a finite and ordered set of social alternatives. It shows that a social choice rule is anonymous, unanimous, and strategy-proof on a maximal single-crossing domain if and only if it is an extended median rule with n-1 fixed ballots distributed over the individuals' most preferred alternatives. As a by-product, the paper also proves that strategy-proofness implies the tops-only property. It also offers a strategic foundation for the so-called "single-crossing version" of the Median Voter Theorem, by showing that the median ideal point can be implemented in dominant strategies by a direct mechanism in which every individual reveals his true preferences.

Keywords: Single-crossing; strategy-proofness; tops-only; peak rules (search for similar items in EconPapers)
JEL-codes: C72 D71 D78 (search for similar items in EconPapers)
Date: 2009-06-09
References: Add references at CitEc
Citations: View citations in EconPapers (70)

Downloads: (external link)
http://econtheory.org/ojs/index.php/te/article/viewFile/20090127/2515/127 (application/pdf)

Related works:
Working Paper: Strategy-Proofness and Single-Crossing (2008) Downloads
Working Paper: Strategy-Proofness and Single-Crossing (2007) Downloads
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:the:publsh:399

Access Statistics for this article

Theoretical Economics is currently edited by Simon Board, Todd D. Sarver, Juuso Toikka, Rakesh Vohra, Pierre-Olivier Weill

More articles in Theoretical Economics from Econometric Society
Bibliographic data for series maintained by Martin J. Osborne ().

 
Page updated 2025-03-30
Handle: RePEc:the:publsh:399