The Formation and Maintenance of Cooperation under the Open Economy

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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.