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Computationally efficient coordination in game trees

By Francoise Forges and Bernhard von Stengel


The solution concept of “correlated equilibrium” allows for coordination in games. For game trees with imperfect information, it gives rise to NP-hard problems, even for two-player games without chance moves. We introduce the “extensive form correlated equilibrium” (EFCE), which extends Aumann’s correlated equilibrium, where coordination is achieved by signals that are received “locally” at information sets. An EFCE is polynomial-time computable for two-player games without chance moves

Topics: QA Mathematics
Publisher: Centre for Discrete and Applicable Mathematics, London School of Economics and Political Science
Year: 2002
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Provided by: LSE Research Online
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