DocumentCode
1628537
Title
Condorcet voting methods avoid the paradoxes of voting theory
Author
Tiance Wang ; Sturm, Jurgen ; Cuff, Paul ; Kulkarni, Santosh
Author_Institution
Princeton Univ., Princeton, NJ, USA
fYear
2012
Firstpage
201
Lastpage
203
Abstract
Democratically choosing a single preference from more than two candidate options is not a straightforward matter. In fact, voting theory has established a number of paradoxes which assert seemingly innocuous attributes to be incompatible. One of the most desirable attributes - independence of irrelevant alternatives - is proven by Arrow to be incompatible (in a worst-case sense) with nominal fairness constraint. Another theorem states that all voting systems will have opportunities for a voter to improve their outcome by voting contrary to their true preferences. What we show in this work is that Condorcet methods, which uniquely satisfy the independent of irrelevant alternatives property whenever possible, actually avoids these paradoxes both in practice (based on real data) and in theory (in a probabilistic sense).
Keywords
politics; probability; Condorcet voting method; independent of irrelevant alternatives property; nominal fairness constraint; probabilistic sense; voting system; voting theory; Analytical models; Educational institutions; Nominations and elections; Probabilistic logic; Robustness; Sociology; Statistics;
fLanguage
English
Publisher
ieee
Conference_Titel
Communication, Control, and Computing (Allerton), 2012 50th Annual Allerton Conference on
Conference_Location
Monticello, IL
Print_ISBN
978-1-4673-4537-8
Type
conf
DOI
10.1109/Allerton.2012.6483218
Filename
6483218
Link To Document