A weak version of Barberà-Kelly's Theorem

Abstract:

Lifting preferences over candidates to preferences over sets of candidates allows us to give a very natural notion of manipulability for social choice functions. In particular, we give simple conditions over the liftings entailing the manipulability of reasonable social choice functions. Our result is a weak version of Barbera and Kelly's Theorem, indeed it can be obtained from this last Theorem. However, we give a direct and very natural proof of our manipulability Theorem which is informative about the nature of the liftings allowing manipulability.

Año de publicación:

2017

Keywords:

• manipulation
• Preferences
• Merging
• Social choice

Fuente:

scopus