Yoshio Kamijo

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If you have any comment or question on the working paper series, please contact each author. When making a copy or reproduction of the content, please contact us in advance to request permission. The source should explicitly be credited. Abstract In this paper, we study cooperative games with coalition structures. We show that a solution concept which(More)
If you have any comment or question on the working paper series, please contact each author. When making a copy or reproduction of the content, please contact us in advance to request permission. The source should explicitly be credited. Abstract This paper provides a non-symmetric generalization of the position value for communication situations. The(More)
In this study, we conducted a laboratory experiment to assess preemptive striking by and towards individuals or groups. In the framework of a preemptive strike game, we set the following four conditions: one person faced another person, one person faced a three-person group, a three-person group faced an individual, and a three-person group faced another(More)
Cooperation is fundamental to human societies, and one of the important paths for its emergence and maintenance is reciprocity. In prisoner's dilemma (PD) experiments, reciprocal strategies are often effective at attaining and maintaining high cooperation. In many public goods (PG) games or n-person PD experiments, however, reciprocal strategies are not(More)