TY - JOUR
T1 - Congestion games with malicious players
AU - Babaioff, Moshe
AU - Kleinberg, Robert
AU - Papadimitriou, Christos H.
PY - 2009/9
Y1 - 2009/9
N2 - We study the equilibria of non-atomic congestion games in which there are two types of players: rational players, who seek to minimize their own delay, and malicious players, who seek to maximize the average delay experienced by the rational players. We study the existence of pure and mixed Nash equilibria for these games, and we seek to quantify the impact of the malicious players on the equilibrium. One counterintuitive phenomenon which we demonstrate is the "windfall of malice": paradoxically, when a myopically malicious player gains control of a fraction of the flow, the new equilibrium may be more favorable for the remaining rational players than the previous equilibrium.
AB - We study the equilibria of non-atomic congestion games in which there are two types of players: rational players, who seek to minimize their own delay, and malicious players, who seek to maximize the average delay experienced by the rational players. We study the existence of pure and mixed Nash equilibria for these games, and we seek to quantify the impact of the malicious players on the equilibrium. One counterintuitive phenomenon which we demonstrate is the "windfall of malice": paradoxically, when a myopically malicious player gains control of a fraction of the flow, the new equilibrium may be more favorable for the remaining rational players than the previous equilibrium.
KW - Congestion games
KW - Equilibrium
KW - Malicious behavior
KW - Selfish routing
UR - http://www.scopus.com/inward/record.url?scp=67849101671&partnerID=8YFLogxK
U2 - 10.1016/j.geb.2009.04.017
DO - 10.1016/j.geb.2009.04.017
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:67849101671
SN - 0899-8256
VL - 67
SP - 22
EP - 35
JO - Games and Economic Behavior
JF - Games and Economic Behavior
IS - 1
ER -