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Proceedings Article, Paper
@InProceedings
Beitrag in Tagungsband, Workshop

Author, Editor
Author(s):
Bhaskar, Umang
Fleischer, Lisa
Hoy, Darrell
Huang, Chien-Chung
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dblp
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Not MPG Author(s):
Bhaskar, Umang
Fleischer, Lisa
Hoy, Darrell
Editor(s):
Mathieu, Clairedblp
Not MPII Editor(s):
Mathieu, Claire
BibTeX cite key*:
Huang2008
Title, Booktitle
Title*:
Equilibria of Atomic Flow Games are not Unique
soda_submission2.pdf (226.25 KB)
Booktitle*:
Proceedings of the Twentieth Annual ACM-SIAM Symposium on Discrete Algorithms (SODA 2009)
Event, URLs
Conference URL::
http://www.siam.org/proceedings/soda/2009/soda09.php
Downloading URL:
http://www.siam.org/proceedings/soda/2009/soda09.php
Event Address*:
New York, U.S.A.
Language:
English
Event Date*
(no longer used):
Organization:
Event Start Date:
4 January 2009
Event End Date:
6 January 2009
Publisher
Name*:
ACM
URL:
http://www.siam.org/
Address*:
New York, NY
Type:
Vol, No, Year, pp.
Series:
Volume:
Number:
Month:
January
Pages:
748-757
Year*:
2009
VG Wort Pages:
ISBN/ISSN:
Sequence Number:
DOI:
Note, Abstract, ©
(LaTeX) Abstract:
In STOC 2006, Hayrapetyan, Tardos and Wexler introduced the problem
of studying collusion in network routing games. In this
work, we show that collusion adds significant
complexity to the structure of equilibria in nonatomic routing games,
answering an open question posed by
Cominetti, Correa, and Stier-Moses (ICALP 2006):

Without collusion, it follows from well-known convexity arguments
that equilibria exist and are unique (up to induced delays, and under
weak assumptions on delay functions). The question
is, does this uniqueness continue to hold in the presence of collusion?

We answer no: we show that if collusion is allowed in nonatomic routing games,
there may be multiple equilibria.
We demonstrate the multiplicity via two specific examples.
In addition, we show our examples are topologically minimal
by giving a complete characterization of the class of
network topologies for which unique equilibria exist. Our
proofs and examples are based on a novel characterization of
these topologies in terms of sets of circulations.
Keywords:
Game Theory
Download
Access Level:
Public

Correlation
MPG Unit:
Max-Planck-Institut für Informatik
MPG Subunit:
Algorithms and Complexity Group
Appearance:
MPII WWW Server, MPII FTP Server, MPG publications list, university publications list, working group publication list, Fachbeirat, VG Wort



BibTeX Entry:

@INPROCEEDINGS{Huang2008,
AUTHOR = {Bhaskar, Umang and Fleischer, Lisa and Hoy, Darrell and Huang, Chien-Chung},
EDITOR = {Mathieu, Claire},
TITLE = {Equilibria of Atomic Flow Games are not Unique},
BOOKTITLE = {Proceedings of the Twentieth Annual ACM-SIAM Symposium on Discrete Algorithms (SODA 2009)},
PUBLISHER = {ACM},
YEAR = {2009},
PAGES = {748--757},
ADDRESS = {New York, U.S.A.},
MONTH = {January},
}


Entry last modified by Anja Becker, 03/04/2010
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Editor(s)
[Library]
Created
02/13/2009 05:18:09 PM
Revisions
2.
1.
0.

Editor(s)
Anja Becker
Chien-Chung Huang
Chien-Chung Huang

Edit Dates
01.03.2010 13:42:46
03/24/2009 03:59:24 PM
02/13/2009 05:18:09 PM


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soda_submission2.pdf