Analysis of Voting Systems

Girish Varma Tata Institute of Fundamental Research School of Technology and Computer Science Homi Bhabha Road
Tuesday, 17 May 2011 (all day)
A-212 (STCS Seminar Room)
This talk will be an introduction to Social Choice Theory, which analyses methods to combine preferences of large number of voters to obtain a result that is fair . We will define some reasonable conditions for fairness, and prove the Arrows Impossibility theorem which states that no voting system can satisfy all these conditions.

References: This theory has been used to analyse an alternative voting scheme in UK, where a recent referendum about it was held

Amartya Sen's Nobel Lecture

Proof of Arrows Theorem