| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Outline of Final Research Achievements |
This research project studied how efficiency can be enhanced in the two-person and more-than two-person voluntarily separable Prisoner’s Dilemma models. It has been shown that, in more-than two-person models as well as in two-person models, when a certain condition holds, equilibrium involving both cooperative and non-cooperative strategies is more efficient than equilibrium with cooperative strategies only. There have also been some findings concerning relationship between equilibrium efficiency and group rules which are specific to more-than two-person models.
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