Multidimensional Study of Relationship Between Corporate Concentration and the Law in an Age of Internationalization -A sociological Analysis

本研究旨在描述如何在日本现行法律包括反垄断法下分析日本经济中的公司集中，考虑到在美国和欧洲国家有许多人认为这种以生产集团公司、经销集团公司和企业集团形式的公司集中具有封闭性和排他性。本研究的第一部分探讨了作为国际商业行为规则的反垄断法、贸易法和WTO协议的法律问题。第二部分研究了国际和国内联合、生产合资和零部件采购等法律问题。在汽车行业、电机行业、计算机行业、第三部分从反垄断法的角度分析了汽车行业生产和分销相关商业行为的法律问题，考虑到这些商业行为的封闭性和排他性将如何转变为票价、开放和竞争特征，从而可以估计，通过这些事实调查和法律分析，本研究的目的完全达到了。

This research is designed to describe how corporate concentration in the Japanese economy would be analyzed under current Japanese law including antimonopoly act, considering that there are numerous cstimation in the USA and European Countries that such corporate concentration in the form of production Keiretsu, distribution Keiretsu and Group of Enterprises is closed and exclusive in its character.Part 1 of this research examines the legal issues of antimonopoly act, trade law, and WTO agreements as a rule of international business conduct.Part 2 examines the legal issues concerning the international and domestic tie-ups, production joint venture and procurement of parts etc.In automobile industry, electrical machinery industry, computer industry, based upon extensive factual investigation.Part 3 analyze the legal issues of the business practices related to production and distribution in automobile industry from the viewpoint of antimonopoly act, considering how the closed and exclusive aspect of these business practices would be changed into fare, opend and competitive character.Consequently, it is allowed to estimate that, through these factual investigation and legal analysis, the purpose of this research is fully accomplished.