The Good, The Bad and The Cautious: Safety Level Cooperative Games


Bachrach, Yoram , Polukarov, Maria and Jennings, Nick (2010) The Good, The Bad and The Cautious: Safety Level Cooperative Games. In, Proc. 6th Int Workshop on Internet and Network Economics (WINE-2010), Stanford University, Stanford, California, USA, 13 - 17 Dec 2010. , 432-443.

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Description/Abstract

We study safety level coalitions in competitive games. Given a normal form game, we define a corresponding cooperative game with transferable utility, where the value of each coalition is determined by the safety level payoff it derives in the original---non-cooperative---game. We thus capture several key features of agents' behavior: (i) the possible monetary transfer among the coalition members; (ii) the solidarity of the outsiders against the collaborators; (iii) the need for the coalition to optimize its actions against the worst possible behavior of those outside the coalition. We examine the concept of safety level cooperation in congestion games, and focus on computing the value of coalitions, the core and the Shapley value in the resulting safety level cooperative games. We provide tractable algorithms for anonymous cooperative games and for safety level cooperative games that correspond to symmetric congestion games with singleton strategies. However, we show hardness of several problems such as computing values in games with multi-resource strategies or asymmetric strategy spaces.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Event Dates: December 13-17, 2010
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Agents, Interactions & Complexity
ePrint ID: 271641
Date Deposited: 19 Oct 2010 13:30
Last Modified: 27 Mar 2014 20:17
Further Information:Google Scholar
ISI Citation Count:0
URI: http://eprints.soton.ac.uk/id/eprint/271641

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