International Public Goods for Peace and Security in the post-Cold War Era : New Challenge to Construct New Order in the Global Society

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The purpose of this research is to clarify how to build new orders in international relations in the post cold war era. This project is noticeable in its interdisciplinary nature, encompassing economics, political science, informatics, complexity sciences, etc., and in being motivated by both imperative to solve policy issues in the real world and theoretical interests. In the theory part, the conceptualization of international public goods, the analysis of its relation to international orders, and the examination of mechanism for spontaneous provisions of the goods have been performed. In the case study part, issues in trade, nuclear weapons, and security, and the problem of the compliance of international treaties, a core of the order preservation, have been examined.These researches were publicized in many papers, books, and reports. In the simulation part, a stand-alone type simulation model and its extension, a network-based distributed-concurrent simulation model were developed. … More Each nation is modeled as an independent agent, and within the nation there exist multiple institutions, each of which, in turn, is divided into small-scale organizations by functions. Based on the models, emergent processes of international orders have been analyzed, focusing mainly on diplomacy and war. By embedding various variables such as culture and strategic patterns into the models, simulation experiments searching for conditions of the generation of international orders have been attempted. Further, our achievements, mainly those in simulations, were presented at several U.S. research institutions and gained high appraisals. It is worth noting that we had meetings with a group of researchers in the UNDP sharing research interests for future collaborations. And, our future plan for more realistic simulations enabling policy experiments, building on the researches performed so far, drew great interests in these institutions, showing high standards of the accomplishments in this project and the future plan. Less