A Study of Cooperation Enhancing Mechanisms

(1)我们考虑了一个由理论模型导出的联盟形成的简单模型，并设计了一个经济实验。在北海道大学研究生寺井先生的帮助下，完成了实验的计算机程序。它在网络上工作，并且很容易处理几个实验。(2)我们于2000年7月30日、2001年7月31日、2001年10月11日、2001年11月24日（2次）、2002年2月2日使用上述程序进行了经济性试验。在每个实验中，早稻田大学的15名学生参加。前三个实验是为了做好准备，以发现程序的错误和实验过程的缺陷。最后三个实验是主要实验，并进行了详细的分析.结果表明，非合作行为经常与理论预测相反。(3)我们定期举办研讨会，邀请了许多研究人员，讨论了许多相关问题。这些结果对（4）的理论研究产生了影响。(4)首席研究员Funaki将理论结果总结为一篇题为“核心和一致性属性：一般表征”的论文。这篇论文发表在《国际博弈论评论》上。这篇论文是在国际博弈论学会第一届世界大会上发表的。研究者荒木将理论结果总结为一篇题为“混合策略的进化解释”的论文。“有关的议题在同一次世界大会和计量经济学会远东会议上提出。

(1) We considered a simpler model of the formation of coalition induced from a theoretical model, and designed an economic experiment. By aid of a graduate student of Hokkaido University, Mr. Terai, a computer program for the experiment was completed. It works on a network, and it is very easy to handle several experiments.(2) We performed economic experiments by using the above program on 7/30/2000, 7/31/2001, 10/11/2001, 11/24/2001(2 times), 2/2/2002. In each experiment, 15 students of Waseda University participated. First three experiments were performed for the preparation to find bugs of the program and defects of the procedure of the experiment. Last three experiments were main experiments and analyzed in detail. In the result, non cooperative behavior is found frequently contrary to the theoretical prediction.(3) We had regular seminars where many researchers were invited and many related issues were discussed. These outcomes had influence on the theoretical research of (4).(4) The head investigator, Funaki, summarizes the theoretic results as a paper entitled "The Core and Consistency Properties : A General Characterization." This paper was published in the International Game Theory Review. This paper was presented at the First World Congress of the International Game Theory Society. The investigator, Araki, summarizes the theoretic results as a paper entitled "Evolutionary Interpretations of Mixed Strategy." The related topics were presented at the same world congress and the Econometric Society Far Eastern Meeting.