The Formation and Maintenance of Cooperation under the Open Economy

在本项目中，我们与21-COE GLOPE项目合作开展了理论研究和实验研究。1）实验研究方面，我们进行了12个实验：2004年2月12日、2005年3月2日、2005年7月29日、2005年2月12日（两次）、2006年2月2日（两次）、2006年3月2日（三次）、2006年2月17日（在中国，两次）。部分实验结果在21-COE GLOPE北京会议上作了报告。它还发表在一份学术期刊《早稻田政治学和经济学杂志》上。在这些研究结果中，关于合作形成和维持的主体行为、政治决策系统与合作之间的关系的数据是相当有趣的。然后，我们现在正在准备一份文件，将提交给一些国际学术期刊。2）在理论研究，船木发表了一份文件的合作游戏，其中考虑了一些稳定的解决方案，如核心和核心的属性。3）船木和广田都参加了几个国际会议，研讨会和研讨会，然后介绍了论文，并讨论了他们与许多与会者。我们还多次在早稻田大学举办国内和国际研讨会，并邀请了两位著名教授，S.Sunder（耶鲁大学实验经济学）和G.欧文（海军研究生院，博弈论）。与他们的讨论对我们的研究项目非常有帮助。4）在国内和国际研讨会上，我们邀请了20多名研究人员，这些讨论反映了1）中的结果和模型。

In this project, we conducted both theoretical research and experimental research in cooperation with 21-COE GLOPE project.1) For experimental research, we conducted 12 experiments: 2/12/2004, 3/2/2005, 29/7/2005, 2/12/2005(twice), 2/2/2006(twice), 3/2/2006(3 times), 17/2/2006(in China, twice). A part of the results of these experiments were reported at Beijing Conference of 21-COE GLOPE. It was also published by an academic journal, The Waseda Journal of Political Science and Economics. Among these results, the data about the behavior of the subjects concerning to the formation and maintenance of the cooperation, the relationship between the political decision system and cooperation are quite interesting. Then we are now preparing a paper which will be submitted to some international academic journal.2) For theoretical research, Funaki published a paper of cooperative games, which considers a property of some stable solutions such as the core and the kernel.3) Both Funaki and Hirota attended several international conferences, workshops and seminars, then presented the papers and discussed them with many participants. We also held national and international seminars in Waseda university several times, and we invited two distinguished professors, S.Sunder (Yale Univ. Experimental Economics) and G. Owen (Naval Graduate School, Game Theory). The discussions with them were extremely helpful with our research project.4) In the national and international seminars, we invited more than 20 researchers and the results and models in 1) are reflected in these discussions.