Preparation of De-listed company Database in the 1950-60ies and Research on features of Disclosure.

基础研究项目是基于对1949年至1999年间从股市退市的约650家公司的调查。其中许多公司的历史和发展，尤其是在50年代初，都不清楚。这些公司中的许多人试图在战后继续他们的业务，即使是在混乱、衰退和通货膨胀的紧张经济条件下。要更详细地调查这些事件是非常困难的，因为关于这个主题的材料很少。这段时间的公司年报已经不存在了。这些公司最初退市的原因是缺乏资金、破产或公司解散。在研究过程中，我们分析了自1949年5月以来所有关于这些公司破产、解散和合并、增资或减资的官方政府报告。我也调查了这些公司的财务报表，但他们没有澄清这些公司的财务状况。例如，这些公司的股息率和销售数据并不完全可用。本研究项目的主要目的是建立一个从1949年证券交易所重新开放到1999年的650家退市公司的财务背景数据库。通过记录这些公司的管理行为，可以吸取未来的教训。以该研究计划为基础，大公浩教授发表了106家公司的报告。最后，这个项目的成果在九州工业大学管理学院的科学期刊上不断发表。到目前为止，已经完成了约450家公司的报告。

The underlying research project is based on an investigation of about 650 companies delisted from the stock market between 1949 and 1999. The history and development of many of these companies, especially in the early 50ies are unclear. Many of these companies tried to continue their businesses after the war, even under stressful economic conditions fighting chaos, recession and inflation. It is very difficult to investigate these happenings in greater detail, because there very little material on this topic available. Annual company reports of this time are not existing anymore.The initial reasons for these companies to delist were lack of capital, bankruptcy or company dissolution. In the research process all official government reports on bankruptcy, company dissolutions and mergers, capital increase or decrease of these companies starting from Mai 1949 were analysed. I also investigated the financial statements of these companies, but they do not clarify the financial situations of these companies. For example, dividend rate and sales figures of the companies were not entirely available.The main aim of this research project is to create a database of the financial background of 650 de-listed companies starting with the reopening of the stock exchange in 1949 until the year 1999. By documenting the managerial actions of these companies lessons for the future can be learned.Based on the research plan 106 company reports were published by Prof. Hiroshi Oyachi. Finally there are continous publications of the results of this project in the scientific journals of the faculty of Management at Kyushu Sangyo University. So far reports about 450 companies were completed.