T
Takashi Ui
Researcher at Hitotsubashi University
Publications - 52
Citations - 941
Takashi Ui is an academic researcher from Hitotsubashi University. The author has contributed to research in topics: Stochastic game & Complete information. The author has an hindex of 14, co-authored 45 publications receiving 859 citations. Previous affiliations of Takashi Ui include Yokohama National University & University of Tsukuba.
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A Shapley Value Representation of Potential Games
TL;DR: It is proved that a game has a potential function if and only if its payoff functions coincide with the Shapley value of a particular class of cooperative games indexed by the set of strategy profiles.
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Robust equilibria of potential games
TL;DR: In this paper, the robustness of potential games with potential functions has been investigated and it has been shown that Nash equilibria that maximize potential functions are generically robust, i.e., they generate behavior close to the Nash equilibrium.
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Generalized potentials and robust sets of equilibria
Stephen Morris,Takashi Ui +1 more
TL;DR: Substantial conditions for the robustness of sets of equilibria in terms of argmax sets of generalized potential functions are provided and it is shown that the sufficient conditions generalize the existing sufficient conditions for a set ofequilibria.
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Best response equivalence
Stephen Morris,Takashi Ui +1 more
TL;DR: It is shown that a large class of games are best-response equivalent to identical interest games, but are not potential games, and some existing potential game arguments can be extended.
Posted Content
Incomplete Information Games with Multiple Priors
Atsushi Kajii,Takashi Ui +1 more
TL;DR: In this paper, the authors present a model of incomplete information games, where each player is endowed with a set of priors and evaluates his actions by the most pessimistic posterior beliefs.