Department of Mathematics

Indian Institute Of Technology Madras , Chennai

Impossibility theorems in social choice theory‚Äč

Speaker : Dr. Jaikrishnan J., IIT Madras


Abstract :

Social choice theory is a field that deals with aggregating individual interests to determine net social preference. Any form of democracy hinges crucially upon the existence of a voting system that is free and fair. However, a famous theorem of Kenneth Arrow shows, under reasonable assumptions, that no such voting system is possible! In this talk, we will give a simple proof Arrow's theorem given by Terence Tao. We will also talk about Sen's liberal paradox which also raises some fundamental questions on the underpinnings of democracy.

Key Speaker Dr. Jaikrishnan J., IIT Madras
Place NAC 522
Start Time 3:00 PM
Finish Time 4:00 PM
External Link None