Considerate Equilibrium

Hoefer, Martin, Penn, Michal, Polukarov, Maria, Skopalik, Alexander and Vöcking, Berthold (2011) Considerate Equilibrium At 22nd International Joint Conference on Artificial Intelligence (IJCAI), Spain. 16 - 22 Jul 2011.


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We study the existence and computational complexity of coalitional stability concepts based on social networks. Our concepts represent a natural and rich combinatorial generalization of a recent notion termed \emph{partition equilibrium}~\cite{Feldman09}. We assume that players in a strategic game are embedded in a social (or, communication) network, and there are coordination constraints defining the set of coalitions that can jointly deviate in the game. A main feature of our approach is that players act in a ``considerate'' fashion to ignore potentially profitable (group) deviations if the change in their strategy may cause a decrease of utility to their neighbors in the network. We explore the properties of such \emph{considerate equilibria} in application to the celebrated class of \emph{resource selection games (RSGs)}. Our main result proves existence of a super-strong considerate equilibrium in all symmetric RSGs with strictly increasing delays, for \emph{any} social network among the players and feasible coalitions represented by the set of cliques. The existence proof is constructive and yields an efficient algorithm. In fact, the computed considerate equilibrium is a Nash equilibrium for a standard RSG, thus showing that there exists a state that is stable against selfish and considerate behavior simultaneously. Furthermore, we provide results on convergence of considerate dynamics.

Item Type: Conference or Workshop Item (Poster)
Additional Information: Event Dates: 16-22 July 2011
Venue - Dates: 22nd International Joint Conference on Artificial Intelligence (IJCAI), Spain, 2011-07-16 - 2011-07-22
Organisations: Agents, Interactions & Complexity
ePrint ID: 272252
Date :
Date Event
July 2011Published
Date Deposited: 05 May 2011 14:58
Last Modified: 17 Apr 2017 17:56
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