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  4. A Budget-balanced, Incentive-compatible Scheme for Social Choice
 
conference paper

A Budget-balanced, Incentive-compatible Scheme for Social Choice

Faltings, Boi  
•
Faratin, Peyman
•
Rodriguez, Juan-Antonio
2005
Agent-Mediated Electronic Commerce VI. Theories for and Engineering of Distributed Mechanisms and Systems. AMEC 2004
AAMAS 2004 Workshop on Agent-Mediated Electronic Commerce VI, AMEC 2004

Many practical scenarios involve solving a social choice problem: a group of self-interested agents have to agree on an outcome that best fits their combined preferences. We assume that each outcome presents a certain utility to an agent and that the best outcome is the one that maximizes the sum of these utilities. We call a mechanism for solving social choice problems incentive-compatible if for each agent, the behavior that maximizes its own utility is also the one that maximizes the group’s utility. One way to achieve incentive-compatibility is the Vickrey-Clarke-Groves (VCG) tax ([5]) mechanism. However, it produces a surplus of taxes that cannot be redistributed to the agents and can severely reduce agents’ utilities. Game theory has shown that it is not possible to have a general scheme that is incentive-compatible, budget-balanced and guarantees a Pareto-efficient solution. We present a scheme that sacrifices Pareto-efficiency to achieve budget balance while being both incentive-compatible and individually rational. On randomly generated social choice problems, the scheme results in significantly better overall agent utility than the VCG tax mechanism.

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Type
conference paper
DOI
10.1007/11575726_3
Author(s)
Faltings, Boi  
Faratin, Peyman
Rodriguez, Juan-Antonio
Date Issued

2005

Publisher

Springer

Published in
Agent-Mediated Electronic Commerce VI. Theories for and Engineering of Distributed Mechanisms and Systems. AMEC 2004
ISBN of the book

978-3-540-29737-6

Series title/Series vol.

Lecture Notes in Computer Science; 3435

Start page

30

End page

43

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LIA  
Event nameEvent placeEvent date
AAMAS 2004 Workshop on Agent-Mediated Electronic Commerce VI, AMEC 2004

New York, NY; United StatesNew York, NY; United States

2004-07-19

Available on Infoscience
December 13, 2006
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/238423
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