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- Yuichi Yamamoto
- J. Economic Theory
- 2009

The present paper provides a limit characterization of the payoff set supported by belief-free equilibria in repeated games with private monitoring, as the discount factor approaches one and the noise on private information vanishes. Contrary to the conjecture by Ely, Hörner, and Olszewski (2005), in many of the three-or-more player games, the payoff set is… (More)

This paper studies repeated games with imperfect public monitoring where the players are uncertain both about the payoff functions and about the relationship between the distribution of signals and the actions played. We introduce the concept of perfect public ex-post equilibrium (PPXE), and show that it can be characterized with an extension of the… (More)

- Yuichi Yamamoto
- J. Economic Theory
- 2007

This paper studies N player infinitely repeated games with imperfect private monitoring where the discount factor is close to unity. Ely and Valimaki [4] (written as EV below) construct a strategy which makes players indifferent among their actions in each period and show the folk theorem in prisoner’s dilemma games with two players when monitoring is… (More)

- Nobuyuki Morohashi, Yuichi Yamamoto, +4 authors Mitsuhiro Shimizu
- Eukaryotic cell
- 2006

In Saccharomyces cerevisiae, a-cell-specific genes are repressed in MATalpha cells by alpha2/Mcm1, acting in concert with the Ssn6-Tup1 corepressors and the Isw2 chromatin remodeling complex, and nucleosome positioning has been proposed as one mechanism of repression. However, prior studies showed that nucleosome positioning is not essential for repression… (More)

- Ichiro Matsuo, Sunhwa Kim, +4 authors Katsuhiko Kitamoto
- Bioscience, biotechnology, and biochemistry
- 2003

We isolated a beta-N-acetylglucosaminidase encoding gene from the filamentous fungus Aspergillus oryzae, and designated it nagA. The nagA gene encoded a polypeptide of 600 amino acids with significant similarity to glucosaminidases and hexosaminidases of various eukaryotes. A. oryzae strain carrying the nagA gene under the control of the improved glaA… (More)

- Drew Fudenberg, Yuichi Yamamoto
- J. Economic Theory
- 2011

In an irreducible stochastic game, no single player can prevent the stochastic process on states from being irreducible, so the other players can ensure that the current state has little effect on events in the distant future. This paper provides a sufficient condition for the folk theorem in irreducible stochastic games with imperfect public monitoring,… (More)

- Drew Fudenberg, David K. Levine, +4 authors Yuichi Yamamoto
- 2008

The theory of learning in games studies how, which and what kind of equilibria might arise as a consequence of a long-run non-equilibrium process of learning, adaptation and/or imitation. If agents’ strategies are completely observed at the end of each round, and agents are randomly matched with a series of anonymous opponents, fairly simple rules perform… (More)

- FUHITO KOJIMA, Alvin E. Roth, +5 authors M. Bumin Yenmez
- 2007

In two-sided matching markets in which some doctors form couples, we present an algorithm that finds all the stable matchings whenever one exists, and otherwise shows that there is no stable matching. Extending the methodology of Echenique and Yenmez (2006), we characterize the set of stable matchings as the fixed points of a monotone decreasing function… (More)

- Zainul Abedin Siddique, Yuichi Yamamoto, Takeshi Ohno, Koichi Nozaki
- Inorganic chemistry
- 2003

The photophysical properties of singlet and triplet metal-to-ligand charge transfer (MLCT) states of [Cu(I)(diimine)(2)](+), where diimine is 2,9-dimethyl-1,10-phenanthroline (dmphen), 2,9-dibutyl-1,10-phenanthroline (dbphen), or 6,6'-dimethyl-2,2'-bipyridine (dmbpy), were studied. On 400 nm laser excitation of [Cu(dmphen)(2)](+) in CH(2)Cl(2) solution,… (More)

- Yuichi Yamamoto
- J. Economic Theory
- 2012

This paper proposes and studies a tractable subset of Nash equilibria, belieffree review-strategy equilibria, in repeated games with private monitoring. The payoff set of this class of equilibria is characterized in the limit as the discount factor converges to one for games where players observe statistically independent signals. As an application, we… (More)