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Computing a self-confirming equilibrium in two-player extensive-form games
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Solving strategic bargaining with arbitrary one-sided uncertainty
The 10th International Conference on Autonomous Agents and Multiagent Systems - Volume 3
Computing a proper equilibrium of a bimatrix game
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Bilateral bargaining with one-sided uncertain reserve prices
Autonomous Agents and Multi-Agent Systems
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Koller, Megiddo and von Stengel showed how to efficiently compute minimax strategies for two-player extensive-form zero-sum games with imperfect information but perfect recall using linear programming and avoiding conversion to normal form. Koller and Pfeffer pointed out that the strategies obtained by the algorithm are not necessarily sequentially rational and that this deficiency is often problematic for the practical applications. We show how to remove this deficiency by modifying the linear programs constructed by Koller, Megiddo and von Stengel so that pairs of strategies forming a sequential equilibrium are computed. In particular, we show that a sequential equilibrium for a two-player zero-sum game with imperfect information but perfect recall can be found in polynomial time. In addition, the equilibrium we find is normal-form perfect. Our technique generalizes to general-sum games, yielding an algorithm for such games which is likely to be prove practical, even though it is not polynomial-time.